diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a711b51c..822f33018 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+ - Added `hf iclass sam` - Added support for HID SAM Picopass communications (@iceman1001)
  - Add support for quoted arguments in the CLI, allowing spaces in them which
    are removed automatically (@jmichelp)
  - Added UDP support on Windows (@wh201906)
diff --git a/armsrc/Makefile b/armsrc/Makefile
index d6ab2bfc4..5f641884a 100644
--- a/armsrc/Makefile
+++ b/armsrc/Makefile
@@ -37,13 +37,13 @@ APP_CFLAGS = $(PLATFORM_DEFS) \
 SRC_LF = lfops.c lfsampling.c pcf7931.c lfdemod.c lfadc.c
 SRC_HF = hfops.c
 SRC_ISO15693 = iso15693.c iso15693tools.c
-SRC_ISO14443a = iso14443a.c mifareutil.c mifarecmd.c epa.c mifaresim.c
+SRC_ISO14443a = iso14443a.c mifareutil.c mifarecmd.c epa.c mifaresim.c sam_mfc.c sam_seos.c
 #UNUSED: mifaresniff.c
 SRC_ISO14443b = iso14443b.c
 SRC_FELICA = felica.c
 SRC_CRAPTO1 = crypto1.c des.c desfire_crypto.c mifaredesfire.c aes.c platform_util.c
 SRC_CRC = crc.c crc16.c crc32.c
-SRC_ICLASS = iclass.c optimized_cipherutils.c optimized_ikeys.c optimized_elite.c optimized_cipher.c
+SRC_ICLASS = iclass.c optimized_cipherutils.c optimized_ikeys.c optimized_elite.c optimized_cipher.c sam_picopass.c
 SRC_LEGIC = legicrf.c legicrfsim.c legic_prng.c
 SRC_NFCBARCODE = thinfilm.c
 
diff --git a/armsrc/appmain.c b/armsrc/appmain.c
index 42d551d9b..68490325c 100644
--- a/armsrc/appmain.c
+++ b/armsrc/appmain.c
@@ -62,7 +62,9 @@
 #include "crc16.h"
 #include "protocols.h"
 #include "mifareutil.h"
-
+#include "sam_picopass.h"
+#include "sam_seos.h"
+#include "sam_mfc.h"
 
 #ifdef WITH_LCD
 #include "LCD_disabled.h"
@@ -2038,6 +2040,21 @@ static void PacketReceived(PacketCommandNG *packet) {
             fwdata = NULL;
             break;
         }
+
+        case CMD_HF_SAM_PICOPASS: {
+            sam_picopass_get_pacs();
+            break;
+        }
+        case CMD_HF_SAM_SEOS: {
+//            sam_seos_get_pacs();
+            break;
+        }
+
+        case CMD_HF_SAM_MFC: {
+//            sam_mfc_get_pacs();
+            break;
+        }
+
 #endif
 
 #ifdef WITH_FPC_USART
diff --git a/armsrc/sam_mfc.c b/armsrc/sam_mfc.c
new file mode 100644
index 000000000..773dd199c
--- /dev/null
+++ b/armsrc/sam_mfc.c
@@ -0,0 +1,22 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+// Routines to support MFC <-> SAM communication
+//-----------------------------------------------------------------------------
+#include "sam_seos.h"
+#include "iclass.h"
+
+#include "proxmark3_arm.h"
+#include "cmd.h"
\ No newline at end of file
diff --git a/armsrc/sam_mfc.h b/armsrc/sam_mfc.h
new file mode 100644
index 000000000..4a995a6ed
--- /dev/null
+++ b/armsrc/sam_mfc.h
@@ -0,0 +1,21 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+#ifndef __SAM_MFC_H
+#define __SAM_MFC_H
+
+#include "common.h"
+
+#endif
\ No newline at end of file
diff --git a/armsrc/sam_picopass.c b/armsrc/sam_picopass.c
new file mode 100644
index 000000000..48702680b
--- /dev/null
+++ b/armsrc/sam_picopass.c
@@ -0,0 +1,446 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+// Routines to support Picopass <-> SAM communication
+//-----------------------------------------------------------------------------
+#include "sam_picopass.h"
+#include "iclass.h"
+#include "crc16.h"
+#include "proxmark3_arm.h"
+#include "BigBuf.h"
+#include "cmd.h"
+#include "commonutil.h"
+#include "ticks.h"
+#include "dbprint.h"
+#include "i2c.h"
+#include "iso15693.h"
+#include "protocols.h"
+#include "optimized_cipher.h"
+#include "fpgaloader.h"
+
+static int sam_rxtx(const uint8_t *data, uint16_t n, uint8_t *resp, uint16_t *resplen) {
+
+    StartTicks();
+
+    bool res = I2C_BufferWrite(data, n, I2C_DEVICE_CMD_SEND_T0, I2C_DEVICE_ADDRESS_MAIN);
+    if (res == false) {
+        DbpString("failed to send to SIM CARD");
+        goto out;
+    }
+
+    *resplen = ISO7816_MAX_FRAME;
+
+    res = sc_rx_bytes(resp, resplen, SIM_WAIT_DELAY);
+    if (res == false) {
+        DbpString("failed to receive from SIM CARD");
+        goto out;
+    }
+
+    if (*resplen < 2) {
+        DbpString("received too few bytes from SIM CARD");
+        res = false;
+        goto out;
+    }
+
+    uint16_t more_len = 0;
+
+    if (resp[*resplen - 2] == 0x61 || resp[*resplen - 2] == 0x9F) {
+         more_len = resp[*resplen - 1];
+    } else {
+        // we done, return 
+        goto out;
+    }
+
+    // Don't discard data we already received except the SW code.
+    // If we only received 1 byte, this is the echo of INS, we discard it.
+    *resplen -= 2;
+    if (*resplen == 1) {
+        *resplen = 0;
+    }
+
+    uint8_t cmd_getresp[] = {0x00, ISO7816_GET_RESPONSE, 0x00, 0x00, more_len};
+
+    res = I2C_BufferWrite(cmd_getresp, sizeof(cmd_getresp), I2C_DEVICE_CMD_SEND_T0, I2C_DEVICE_ADDRESS_MAIN);
+    if (res == false) {
+        DbpString("failed to send to SIM CARD 2");
+        goto out;
+    }
+
+    more_len = 255 - *resplen;
+
+    res = sc_rx_bytes(resp + *resplen, &more_len, SIM_WAIT_DELAY);
+    if (res == false) {
+        DbpString("failed to receive from SIM CARD 2");
+        goto out;
+    }
+
+    *resplen += more_len;
+
+out:
+    StopTicks();
+    return res;
+}
+
+// using HID SAM to authenticate w PICOPASS
+int sam_picopass_get_pacs(void) {
+
+    static uint8_t act_all[] = { ICLASS_CMD_ACTALL };
+    static uint8_t identify[] = { ICLASS_CMD_READ_OR_IDENTIFY, 0x00, 0x73, 0x33 };
+    static uint8_t read_conf[] = { ICLASS_CMD_READ_OR_IDENTIFY, 0x01, 0xfa, 0x22 };
+    uint8_t select[] = { 0x80 | ICLASS_CMD_SELECT, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+    uint8_t read_aia[] = { ICLASS_CMD_READ_OR_IDENTIFY, 0x05, 0xde, 0x64};
+    uint8_t read_check_cc[] = { 0x80 | ICLASS_CMD_READCHECK, 0x02 };
+
+    picopass_hdr_t hdr = {0};
+    // Bit 4: K.If this bit equals to one, the READCHECK will use the Credit Key (Kc); if equals to zero, Debit Key (Kd) will be used
+    // bit 7: parity.
+    // if (use_credit_key)
+    //     read_check_cc[0] = 0x10 | ICLASS_CMD_READCHECK;
+
+    BigBuf_free_keep_EM();
+
+    clear_trace();
+
+    I2C_Reset_EnterMainProgram(); StopTicks();
+
+    uint8_t *resp = BigBuf_calloc(ISO7816_MAX_FRAME);
+
+    bool shallow_mod = false;
+    uint16_t resp_len = 0;
+    int res;
+    uint32_t eof_time = 0;
+
+    // wakeup
+    Iso15693InitReader();
+
+    uint32_t start_time = GetCountSspClk();
+    iclass_send_as_reader(act_all, 1, &start_time, &eof_time, shallow_mod);
+
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_ACTALL, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // send Identify
+    start_time = eof_time + DELAY_ICLASS_VICC_TO_VCD_READER;
+    iclass_send_as_reader(identify, 1, &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here, 8 byte anticollision-CSN and 2 byte CRC
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 10) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // copy the Anti-collision CSN to our select-packet
+    memcpy(&select[1], resp, 8);
+
+    // select the card
+    start_time = eof_time + DELAY_ICLASS_VICC_TO_VCD_READER;
+    iclass_send_as_reader(select, sizeof(select), &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here, 8 byte CSN and 2 byte CRC
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 10) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // store CSN
+    memcpy(hdr.csn, resp, sizeof(hdr.csn));
+
+    // card selected, now read config (block1) (only 8 bytes no CRC)
+    start_time = eof_time + DELAY_ICLASS_VICC_TO_VCD_READER;
+    iclass_send_as_reader(read_conf, sizeof(read_conf), &start_time, &eof_time, shallow_mod);
+
+    // expect a 8-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 10) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // store CONFIG
+    memcpy((uint8_t *)&hdr.conf, resp, sizeof(hdr.conf));
+
+    uint8_t pagemap = get_pagemap(&hdr);
+    if (pagemap == PICOPASS_NON_SECURE_PAGEMODE) {
+        res = PM3_EWRONGANSWER;
+        goto out;
+    }
+
+    // read App Issuer Area block 5
+    start_time = eof_time + DELAY_ICLASS_VICC_TO_VCD_READER;
+    iclass_send_as_reader(read_aia, sizeof(read_aia), &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 10) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // store AIA
+    memcpy(hdr.app_issuer_area, resp, sizeof(hdr.app_issuer_area));
+
+    // card selected, now read e-purse (cc) (block2) (only 8 bytes no CRC)
+    start_time = eof_time + DELAY_ICLASS_VICC_TO_VCD_READER;
+    iclass_send_as_reader(read_check_cc, sizeof(read_check_cc), &start_time, &eof_time, shallow_mod);
+
+    // expect a 8-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 8) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    // store EPURSE
+    memcpy(hdr.epurse, resp, sizeof(hdr.epurse));
+
+    // -----------------------------------------------------------------------------
+    // SAM comms
+    // -----------------------------------------------------------------------------    
+    size_t sam_len = 0;
+    uint8_t *sam_apdu = BigBuf_calloc(ISO7816_MAX_FRAME);
+
+    // -----------------------------------------------------------------------------
+    // first
+    // a0 da 02 63 1a 44 0a 44 00 00 00 a0 12 ad 10 a0 0e 80 02 00 04 81 08 9b fc a4 00 fb ff 12 e0
+    hexstr_to_byte_array("a0da02631a440a44000000a012ad10a00e800200048108", sam_apdu, &sam_len);
+    memcpy(sam_apdu + sam_len, hdr.csn, sizeof(hdr.csn));
+    sam_len += sizeof(hdr.csn);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 1",resp, resp_len);
+
+    // -----------------------------------------------------------------------------
+    // second
+    // a0 da 02 63 0d 44 0a 44 00 00 00 a0 05 a1 03 80 01 04
+    hexstr_to_byte_array("a0da02630d440a44000000a005a103800104", sam_apdu, &sam_len);
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 2",resp, resp_len);
+
+    // TAG response 
+    // --  0c 05 de64 // read block 5
+    // Tag|c00a140a000000a110a10e8004 0c05de64 8102 0004 820201f4
+
+    // -----------------------------------------------------------------------------
+    // third   AIA block 5
+    // a0da02631c140a00000000bd14a012a010800a ffffff0006fffffff88e 81020000
+    //  picopass  legacy is fixed.  wants AIA and crc. ff ff ff ff ff ff ff ff ea f5
+    //  picpoasss SE                                   ff ff ff 00 06 ff ff ff f8 8e
+    hexstr_to_byte_array("a0da02631c140a00000000bd14a012a010800affffff0006fffffff88e81020000", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, hdr.app_issuer_area, sizeof(hdr.app_issuer_area));
+    AddCrc(sam_apdu + 19, 8);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 3",resp, resp_len);
+
+    // 88 02 --  readcheck  (block2 epurse, start of auth)
+    // Tag|c00a140a000000a10ea10c8002 8802 8102 0004 820201f4 9000
+    //    61 16 f5 0a140a000000a10ea10c 8002 8802 8102 0004 820201f4 9000
+
+    // -----------------------------------------------------------------------------
+    // forth  EPURSE
+    // a0da02631a140a00000000bd12a010a00e8008 ffffffffedffffff 81020000
+    hexstr_to_byte_array("a0da02631a140a00000000bd12a010a00e8008ffffffffedffffff81020000", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, hdr.epurse, sizeof(hdr.epurse));
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 4",resp, resp_len);
+
+    uint8_t nr_mac[9] = {0};
+    memcpy(nr_mac, resp + 11, sizeof(nr_mac));
+    // resp here hold the whole   NR/MAC
+    // 05 9bcd475e965ee20e // CHECK (w key)
+    print_dbg("NR/MAC",nr_mac, sizeof(nr_mac));
+
+    // c00a140a000000a115a1138009 059bcd475e965ee20e 8102 0004 820201f4 9000
+
+    // pre calc ourself?
+    // uint8_t cc_nr[] = {0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0, 0, 0, 0};
+    uint8_t div_key[8] = {0};
+    static uint8_t legacy_aa1_key[] = {0xAE, 0xA6, 0x84, 0xA6, 0xDA, 0xB2, 0x32, 0x78};    
+    iclass_calc_div_key(hdr.csn, legacy_aa1_key, div_key, false);
+
+    uint8_t mac[4] = {0};
+    if (g_dbglevel == DBG_DEBUG) {    
+        uint8_t wb[16] = {0};
+        memcpy(wb, hdr.epurse, sizeof(hdr.epurse));
+        memcpy(wb + sizeof(hdr.epurse), nr_mac+1, 4);
+        print_dbg("cc_nr...", wb, sizeof(wb));
+        doMAC_N(wb, sizeof(wb), div_key, mac);    
+        print_dbg("Calc MAC...", mac, sizeof(mac));
+    }
+
+    // start ssp clock again...
+    StartCountSspClk();
+
+    // NOW we auth against tag
+    uint8_t cmd_check[9] = { ICLASS_CMD_CHECK };
+    memcpy(cmd_check + 1, nr_mac + 1, 8);
+
+    start_time = GetCountSspClk();
+    iclass_send_as_reader(cmd_check, sizeof(cmd_check), &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 4) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    // store MAC
+    memcpy(mac, resp, sizeof(mac)); 
+    print_dbg("Got MAC",mac,sizeof(mac));
+
+    // -----------------------------------------------------------------------------
+    // fifth  send received MAC
+    // A0DA026316140A00000000BD0EA00CA00A8004 311E32E9 81020000
+    hexstr_to_byte_array("A0DA026316140A00000000BD0EA00CA00A8004311E32E981020000", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, mac, sizeof(mac));
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 5",resp, resp_len);
+
+    uint8_t tmp_p1[4] = {0};
+    uint8_t tmp_p2[4] = {0};
+
+    // c161c10000a11aa118800e8702 ffffffff88ffffff 0a914eb981020004820236b09000
+
+    memcpy(tmp_p1, resp + 13, sizeof(tmp_p1));
+    memcpy(tmp_p2, resp + 13 + 4, sizeof(tmp_p2));
+    // -----------------------------------------------------------------------------
+    // sixth  send fake epurse update
+    // A0DA02631C140A00000000BD14A012A010800A 88FFFFFFFFFFFFFF9DE1 81020000
+    hexstr_to_byte_array("A0DA02631C140A00000000BD14A012A010800A88FFFFFFFFFFFFFF9DE181020000", sam_apdu, &sam_len);
+
+    memcpy(sam_apdu + 19, tmp_p2, sizeof(tmp_p1));
+    memcpy(sam_apdu + 19 + 4, tmp_p1, sizeof(tmp_p1));
+    AddCrc(sam_apdu + 19, 8);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+     print_dbg("-- 6",resp, resp_len);
+    // c1 61 c1 00 00 a1 10 a1 0e 80 04 0c 06 45 56 81 02 00 04 82 02 01 f4 90 00
+
+    // read block 6
+    StartCountSspClk();
+    start_time = GetCountSspClk();
+    iclass_send_as_reader(resp + 11, 4, &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS || resp_len != 10) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("Block 6 from Picopass",resp, resp_len);
+
+    // -----------------------------------------------------------------------------
+    // eight  send block 6 config to SAM
+    // A0DA02631C140A00000000BD14A012A010800A 030303030003E0174323 81020000
+    hexstr_to_byte_array("A0DA02631C140A00000000BD14A012A010800A030303030003E017432381020000", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, resp, resp_len);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 7", resp, resp_len);
+
+    // c161c10000a110a10e8004 0606455681020004820201f49000
+
+    // read the credential blocks
+    StartCountSspClk();
+    start_time = GetCountSspClk();
+    iclass_send_as_reader(resp + 11, 4, &start_time, &eof_time, shallow_mod);
+
+    // expect a 10-byte response here
+    res = GetIso15693AnswerFromTag(resp, ISO7816_MAX_FRAME, ICLASS_READER_TIMEOUT_OTHERS, &eof_time, false, true, &resp_len);
+    if (res != PM3_SUCCESS) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("Block 6-9 from Picopass",resp, resp_len);
+
+    // -----------------------------------------------------------------------------
+    // nine  send credential blocks to SAM
+    // A0DA026334140A00000000BD2CA02AA0288022 030303030003E017769CB4A198E0DEC82AD4C8211F9968712BE7393CF8E71D7E804C 81020000
+    hexstr_to_byte_array("A0DA026334140A00000000BD2CA02AA0288022030303030003E017769CB4A198E0DEC82AD4C8211F9968712BE7393CF8E71D7E804C81020000", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, resp, resp_len);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+    print_dbg("-- 8",resp, resp_len);
+
+
+    // -----------------------------------------------------------------------------
+    // TEN  ask for PACS data
+    // A0DA02630C440A00000000BD04A0028200
+    hexstr_to_byte_array("A0DA02630C440A00000000BD04A0028200", sam_apdu, &sam_len);
+    memcpy(sam_apdu + 19, resp, resp_len);
+
+    if (sam_rxtx(sam_apdu, sam_len, resp, &resp_len) == false) {
+        res = PM3_ECARDEXCHANGE;
+        goto out;
+    }
+
+    print_dbg("-- 9  response", resp, resp_len);
+    if (memcmp(resp, "\xc1\x64\x00\x00\x00\xbd\x17\x8a\x15", 9) == 0) {
+        res = PM3_ENOPACS;
+        goto out;
+    }
+
+    // c164000000bd098a07 030506951f9a00 9000
+    uint8_t *pacs = BigBuf_calloc(resp[8]);
+    memcpy(pacs, resp + 9, resp[8]);
+
+    print_dbg("-- 10  PACS data", pacs, resp[8]);
+
+    reply_ng(CMD_HF_SAM_PICOPASS, PM3_SUCCESS, pacs, resp[8]);
+    res = PM3_SUCCESS;
+    goto off;
+
+out:
+    reply_ng(CMD_HF_SAM_PICOPASS, res, NULL, 0);
+
+off:
+    switch_off();
+    BigBuf_free();    
+    return res;
+}
+
+// HID SAM <-> MFC
+// HID SAM <-> SEOS
diff --git a/armsrc/sam_picopass.h b/armsrc/sam_picopass.h
new file mode 100644
index 000000000..a4f553c5b
--- /dev/null
+++ b/armsrc/sam_picopass.h
@@ -0,0 +1,23 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+#ifndef __SAM_PICOPASS_H
+#define __SAM_PICOPASS_H
+
+#include "common.h"
+
+int sam_picopass_get_pacs(void);
+
+#endif
\ No newline at end of file
diff --git a/armsrc/sam_seos.c b/armsrc/sam_seos.c
new file mode 100644
index 000000000..2f0f01817
--- /dev/null
+++ b/armsrc/sam_seos.c
@@ -0,0 +1,22 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+// Routines to support SEOS <-> SAM communication
+//-----------------------------------------------------------------------------
+#include "sam_seos.h"
+#include "iclass.h"
+
+#include "proxmark3_arm.h"
+#include "cmd.h"
\ No newline at end of file
diff --git a/armsrc/sam_seos.h b/armsrc/sam_seos.h
new file mode 100644
index 000000000..7cc08517b
--- /dev/null
+++ b/armsrc/sam_seos.h
@@ -0,0 +1,21 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// See LICENSE.txt for the text of the license.
+//-----------------------------------------------------------------------------
+#ifndef __SAM_SEOS_H
+#define __SAM_SEOS_H
+
+#include "common.h"
+
+#endif
\ No newline at end of file
diff --git a/client/src/cmdhficlass.c b/client/src/cmdhficlass.c
index fb5b5cdb4..0d9af88ec 100644
--- a/client/src/cmdhficlass.c
+++ b/client/src/cmdhficlass.c
@@ -4446,24 +4446,100 @@ static int CmdHFiClassSAM(const char *Cmd) {
     bool verbose = arg_get_lit(ctx, 1);
     CLIParserFree(ctx);
 
-    Iso7816CommandChannel channel = CC_CONTACT;
-    if (IfPm3Smartcard() == false) {
-        if (channel == CC_CONTACT) {
-            PrintAndLogEx(WARNING, "PM3 does not have SMARTCARD support, exiting");
-            return PM3_EDEVNOTSUPP;
-        }
+    if (IsHIDSamPresent(verbose) == false) {
+        return PM3_ESOFT;
     }
 
-    int res = IsHIDSamPresent(verbose);
-    if (res != PM3_SUCCESS) {
-        return res;
+    clearCommandBuffer();
+    SendCommandNG(CMD_HF_SAM_PICOPASS, NULL, 0);
+    PacketResponseNG resp;
+    if (WaitForResponseTimeout(CMD_HF_SAM_PICOPASS, &resp, 4000) == false) {
+        PrintAndLogEx(WARNING, "SAM timeout");
+        return PM3_ETIMEOUT;
     }
 
-    SetAPDULogging(verbose);
+    switch (resp.status) {
+        case PM3_SUCCESS:
+            break;
+        case PM3_ENOPACS:
+            PrintAndLogEx(SUCCESS, "No PACS data found. Card empty?");
+            return resp.status;
+        default:
+            PrintAndLogEx(WARNING, "SAM select failed");
+            return resp.status;
+    }
 
-// do things with sending apdus..
+    // CSN, config, epurse, NR/MAC, AIA
+    // PACS
+    // first byte skip
+    // second byte length 
+    // third padded 
+    // fourth ..
+    uint8_t *d = resp.data.asBytes;
+    uint8_t n = d[1] - 1;  // skip length byte
+    uint8_t pad = d[2];
+    char *binstr = (char*)calloc((n * 8) + 1 , sizeof(uint8_t));
+    if (binstr == NULL) {
+        return PM3_EMALLOC;
+    }
+    
+    byte_2_binstr(binstr, d + 3, n);
+
+    PrintAndLogEx(NORMAL, "");
+    PrintAndLogEx(SUCCESS, "PACS......... " _GREEN_("%s"), sprint_hex_inrow(d + 2, resp.length - 2));
+    PrintAndLogEx(SUCCESS, "padded bin... " _GREEN_("%s") " ( %zu )", binstr, strlen(binstr));
+
+    binstr[strlen(binstr) - pad] = '\0';
+    PrintAndLogEx(SUCCESS, "bin.......... " _GREEN_("%s") " ( %zu )", binstr, strlen(binstr));
+
+    size_t hexlen = 0;
+    uint8_t hex[16] = {0};
+    binstr_2_bytes(hex, &hexlen,binstr);
+    PrintAndLogEx(SUCCESS, "hex.......... " _GREEN_("%s"), sprint_hex_inrow(hex, hexlen));
+
+    uint32_t top = 0, mid = 0, bot = 0;
+    if (binstring_to_u96(&top, &mid, &bot, binstr) != strlen(binstr)) {
+        PrintAndLogEx(ERR, "Binary string contains none <0|1> chars");
+        free(binstr);
+        return PM3_EINVARG;
+    }
+
+    PrintAndLogEx(NORMAL, "");
+    PrintAndLogEx(INFO, "Wiegand decode");
+    wiegand_message_t packed = initialize_message_object(top, mid, bot, 0);
+    HIDTryUnpack(&packed);
+
+    PrintAndLogEx(NORMAL, "");
+
+    if (strlen(binstr) >= 26 && verbose) {
+
+        // HID Prox II
+        PrintAndLogEx(INFO, "Downgrade to " _YELLOW_("HID Prox II"));
+        PrintAndLogEx(SUCCESS, "    lf hid clone -w H10301 --bin %s", binstr);
+        PrintAndLogEx(NORMAL, "");
+        // MIFARE Classic
+        char mfcbin[28] = {0};
+        mfcbin[0] = '1';
+        memcpy(mfcbin + 1, binstr, strlen(binstr));
+        binstr_2_bytes(hex, &hexlen, mfcbin);
+
+        PrintAndLogEx(INFO, "Downgrade to " _YELLOW_("MIFARE Classic") " (Pm3 simulation)");
+        PrintAndLogEx(SUCCESS, "    hf mf eclr;");
+        PrintAndLogEx(SUCCESS, "    hf mf esetblk --blk 0 -d 049DBA42A23E80884400C82000000000;");
+        PrintAndLogEx(SUCCESS, "    hf mf esetblk --blk 1 -d 1B014D48000000000000000000000000;");
+        PrintAndLogEx(SUCCESS, "    hf mf esetblk --blk 3 -d A0A1A2A3A4A5787788C189ECA97F8C2A;");
+        PrintAndLogEx(SUCCESS, "    hf mf esetblk --blk 5 -d 020000000000000000000000%s;", sprint_hex_inrow(hex, hexlen));
+        PrintAndLogEx(SUCCESS, "    hf mf esetblk --blk 7 -d 484944204953787788AA204752454154;");
+        PrintAndLogEx(SUCCESS, "    hf mf sim --1k -i;");
+        PrintAndLogEx(NORMAL, "");
+
+        // iCLASS Legacy
+        PrintAndLogEx(INFO, "Clone to " _YELLOW_("iCLASS Legacy"));
+        PrintAndLogEx(SUCCESS, "    hf iclass encode --ki 0 --bin %s", binstr);
+        PrintAndLogEx(NORMAL, "");
+    }
+    free(binstr);
 
-    SetAPDULogging(false);
     return PM3_SUCCESS;
 }
 
@@ -4516,7 +4592,7 @@ int CmdHFiClass(const char *Cmd) {
     return CmdsParse(CommandTable, Cmd);
 }
 
-//static void test_credential_type(void) {
+// static void test_credential_type(void) {
 // need AA1 key
 // Block 5 -> tells if its a legacy or SIO,  also tells which key to use.