F1 Smart Module

Datasheet — March 2024 V1.1

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Introduction

The F1 Smart Module is a compact OEM module equipped with BLE, Wi-Fi, LoRa(WAN), and LTE CAT-M1/NB1/NB2 to support various connectivity needs. Running on a MicroPython-programmable microcontroller with a no-barrier entry into the SG Wireless Ctrl. Cloud Platform, the module enables truly limitless IoT application development with multi-network creation flexibility and rapid scaling capacity.

Key Features

• Multi-connectivity:

  • WiFi 802.11b/g/n (2.4 GHz)

  • Bluetooth BLE 5.0

  • Cellular LTE-CAT M1/NB1/NB2

  • LoRa(WAN) 868 MHz (EU) and 915 MHz (US)

• Powerful Espressif ESP32-S3 CPU

• MicroPython programmable with 27 IOs on module pads

• SMT-friendly semi-hole pins at module edges

• Operating temperature: −40 °C to 85 °C

• Compact size: 42.67 mm × 17.73 mm × 3.50 mm

Order Information

Part Number	Description
SGW3501	F1 Smart Module: BLE, WiFi, LoRa, LTE
SGW3401	F1/C Cellular Module: BLE, WiFi and LTE
SGW3201	F1/L LoRa Module: BLE, WiFi and LoRa

General Features

Feature Specifications

Component	Specifications
CPU	Xtensa® dual-core 32-bit LX7 microprocessor, up to 240 MHz On-chip 384 KB ROM and 512 KB SRAM, on-board 8 MB PSRAM and 16 MB Flash Deep Sleep Mode: 10 µA
WiFi/BLE	Espressif ESP32-S3 on-chip RF frontend WiFi: IEEE 802.11b/g/n (2.4 GHz band); Data Rate: 1 M up to 54 Mbps (MCS7); Max Tx Power: 20 dBm BLE: Bluetooth LE 5.0, Bluetooth mesh; Data Rate: 125 kbps to 2 Mbps; Max Tx Power: 20 dBm
LTE	Sequans Monarch2 GM02S for CAT-M1, CAT-NB1 and CAT-NB2 support LTE CAT-M1/NB1/NB2 transmit power up to +23 dBm PTCRB and GCF 1.3 3GPP release 13 compliant; Operator Approval: Verizon, AT&T, T-Mobile, Vodafone, Orange
LoRa(WAN)	Semtech SX1262 RF transceiver, 868/915 MHz LPWAN Module TX Power: Up to +22 dBm; Sensitivity: −127 dBm LoRaWAN stack – Class A and Class C Device

Figure 1: F1 Smart Module Block Diagram

Pinout & Pin Definitions

Module Pinout Diagram – PDF

Figure 1: F1 Smart Module Pinout Diagram

Figure 2: F1 Smart Module Pin-out (Top View)

Kindly refer to the Mechanical Specifications section for more details on the physical dimensions.

Pin Definitions

Pin Number	Pin Name	MCU Pin	LTE Module Pin	Type	Description
R4	GND			Power	Ground signal
R6	GND			Power	Ground signal
R7	GND			Power	Ground signal
R9	USIM_CLK		SIM0_CLK	Analog I/O	USIM interface I/O to GM02S
R10	USIM_IO		SIM0_IO	Digital I/O	USIM interface I/O to GM02S
R12	GND			Power	Ground signal
R21	GND			Power	Ground signal
R22	RESET	CHIP_PU		Analog I/O	Reset pin to ESP32-S3 for module reset
R23	P0	U0RXD		Analog I/O	UART0 RXD to ESP32-S3
R24	P1	U0TXD		Analog I/O	UART0 TXD to ESP32-S3
R25	P2	GPIO0		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R26	P3	GPIO4		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R27	P4	MTDO		Digital I/O	Digital I/O to ESP32-S3
R28	P5	GPIO5		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
*R29	P6	GPIO6			Reserved – Leave floating, do not connect
R30	P7	GPIO3		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R31	P8	GPIO46		Digital I/O	Digital I/O to ESP32-S3
R32	P9	GPIO45		Digital I/O	Digital I/O to ESP32-S3
R33	P10	MTCK		Digital I/O	Digital I/O to ESP32-S3
R34	P11	GPIO11		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R35	P12	GPIO21		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R36	GND			Power	Ground signal
R37	PEXT1	GPIO1		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
R38	PEXT2	GPIO12		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
M39	GND			Power	Ground signal
L39	BLE/WIFI_ANT			RF I/O	RF interface to ESP32-S3 for BLE and/or Wi-Fi interface
K39	GND			Power	Ground signal
A38	PEXT3	GPIO14		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A37	PEXT4	GPIO13		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A36	GND			Power	Ground signal
A35	GND			Power	Ground signal
A34	P13	GPIO20		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3 / USB OTG D+
A33	P14	GPIO19		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3 / USB OTG D−
A32	P15	GPIO38		Digital I/O	Digital I/O to ESP32-S3
A31	P16	GPIO41		Digital I/O	Digital I/O to ESP32-S3
A30	P17	GPIO2		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A29	P18	GPIO10		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A28	P19	GPIO15		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A27	P20	GPIO16		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A26	P21	GPIO17		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A25	P22	GPIO18		Analog I/O or Digital I/O	Analog I/O or Digital I/O to ESP32-S3
A24	P23	GPIO42		Digital I/O	Digital I/O to ESP32-S3
A23	+3.3V	VDD3P3_CPU VDD3P3_RTC VDD3P3 VDDA		Power	Voltage supply to ESP32-S3 and module main circuit
A22	GND			Power	Ground signal
A21	+1.8V_OUT	VDD_SPI		Power	Voltage supply VDD_SPI to ESP32-S3 for SPI flash and PSRAM
A13	GND			Power	Ground signal
A12	GND			Power	Ground signal
A10	USIM_RST		SIM0_RSTN	Digital I/O	USIM interface I/O to GM02S
A9	USIM_VCC		SIM0_VCC	Power	USIM voltage supply to GM02S
A7	GND			Power	Ground signal
A6	GND			Power	Ground signal
A4	+VBATT		VBAT	Power	Voltage supply to GM02S
E1	GND			Power	Ground signal
F1	LORA_ANT			RF I/O	RF interface to SX1262 for LoRa interface
G1	GND			Power	Ground signal
J1	GND			Power	Ground signal
K1	LTE_ANT		LTE_ANT	RF I/O	RF interface to GM02S for LTE CAT-M1/CAT-NB1/CAT-NB2 interface
L1	GND			Power	Ground signal

Electrical Specifications

Rating & Operating Conditions

Table 1: Absolute Rating and Operating Conditions Specifications

Symbol	Parameter	Min	Typ	Max	Unit
Absolute Rating
+VBATT	Supply voltage to Sequans GM02S LTE module		5.0	5.8	V
+3V3	Supply voltage to Espressif ESP32-S3 and module main circuit	3.0	3.3	3.6	V
+1V8_OUT*	SPI supply voltage (output) of SPI flash and PSRAM for decoupling capacitor connection		1.8	2.3	V
T(OPR)	Operating temperature	−40		85	°C
Operating Conditions
+VBATT	Supply voltage to Sequans GM02S LTE module	2.5	5.0	5.5	V
+3V3	Supply voltage to Espressif ESP32-S3 and module main circuit	3.2	3.3	3.4	V
+1V8_OUT*	SPI supply voltage (output) of SPI flash and PSRAM for decoupling capacitor connection	1.7	1.8	1.9	V
CPU IO (3.3 V power domain, VDD = 3.3 V)
VIH	Input high voltage for GPIOs	0.75 × VDD		VDD + 0.3	V
VIL	Input low voltage for GPIOs	−0.3		0.25 × VDD	V
VOH	Output high voltage for GPIOs	0.8 × VDD			V
VOL	Output low voltage for GPIOs			0.1 × VDD	V
Radio IO (1.8 V power domain)
VIH	Input high voltage for GPIOs	1.26		1.8	V
VIL	Input low voltage for GPIOs	0		0.54	V
VOH	Output high voltage for GPIOs	1.44		1.8	V
VOL	Output low voltage for GPIOs	0		0.36	V

* The +1V8_OUT pin is to connect an external capacitor to the module internal SPI flash and PSRAM for a more robust VDD_SPI supply. This pin should not be connected to any external circuits that may draw more than 20 mA. Voltage of this pin will vary in module light sleep mode and approach zero in module deep sleep mode.

WiFi

Standard: 802.11b/g/n (2.4 GHz ONLY) – 1T1R

Table 2: WiFi Specifications

Parameter	Description	Min	Typ	Max	Unit
General
Freq. (EU)	Operating frequency (EU)	2.402		2.482	GHz
Ch. (EU)	Channel (EU)	1		13
Freq. (US)	Operating frequency (US)	2.402		2.472	GHz
Ch. (US)	Channel (US)	1		11
Power max. (EU/US)	Maximum power (EU/US)			20	dBm
Tx
Tx Power @B – 1 Mbps	Tx power at B mode with data rate 1 Mbps		18	20	dBm
EVM (Peak) @B – 1 Mbps	EVM (Peak) at B mode with data rate 1 Mbps			8	%
Freq. Err. @B – 1 Mbps	Frequency error at B mode with data rate 1 Mbps	−40	0	40	kHz
Tx Power @G – 54 Mbps	Tx power at G mode with data rate 54 Mbps		16	20	dBm
EVM (RMS) @G – 54 Mbps	EVM (RMS) at G mode with data rate 54 Mbps			−25	dB
Freq. Err. @G – 54 Mbps	Frequency error at G mode with data rate 54 Mbps	−40	0	40	kHz
Tx Power @N20 – MCS7	Tx power at N mode with data rate MCS7 and 20 MHz bandwidth		15	20	dBm
EVM (RMS) @N20 – MCS7	EVM rms at N mode with data rate MCS7 and 20 MHz bandwidth			−27	dB
Freq. Err. @N20 – MCS7	Frequency error at N mode with data rate MCS7 and 20 MHz bandwidth	−40	0	40	kHz
Rx
Rx Sens. @B – 1 Mbps	Rx sensitivity at B mode with data rate 1 Mbps		−92.0	−82.0	dBm
Rx Sens. @G – 54 Mbps	Rx sensitivity at G mode with data rate 54 Mbps		−76.5	−66.0	dBm
Rx Sens. @N20 – MCS7	Rx sensitivity at N mode with data rate MCS7 and 20 MHz bandwidth		−71.4	−64.0	dBm

Bluetooth

Standard: BLE 5.0 – 1T1R

Table 3: Bluetooth Specifications

Parameter	Description	Min	Typ	Max	Unit
General
Freq.	Operating frequency	2.4000		2.4835	GHz
Ch.	Channel	0		39
Power max.	Maximum power			20	dBm
Tx
Tx Power @Ch.37 – 1 Mbps	Tx power at channel 37 (freq. = 2402 MHz) with data rate 1 Mbps		17	20	dBm
Freq. Err. @Ch.37 – 1 Mbps	Frequency error at channel 37 (freq. = 2402 MHz) with data rate 1 Mbps	−50	0	50	kHz
Tx Power @Ch.38 – 1 Mbps	Tx power at channel 38 (freq. = 2426 MHz) with data rate 1 Mbps		17	20	dBm
Freq. Err. @Ch.38 – 1 Mbps	Frequency error at channel 38 (freq. = 2426 MHz) with data rate 1 Mbps	−50	0	50	kHz
Tx Power @Ch.39 – 1 Mbps	Tx power at channel 39 (freq. = 2480 MHz) with data rate 1 Mbps		17	20	dBm
Freq. Err. @Ch.39 – 1 Mbps	Frequency error at channel 39 (freq. = 2480 MHz) with data rate 1 Mbps	−50	0	50	kHz
Rx
Rx Sens. @Ch.38 – 2 Mbps	Rx sensitivity at channel 38 (freq. = 2426 MHz) with data rate 2 Mbps		−93.5		dBm
Rx Sens. @Ch.38 – 1 Mbps	Rx sensitivity at channel 38 (freq. = 2426 MHz) with data rate 1 Mbps		−97.5	−70.0	dBm
Rx Sens. @Ch.38 – 500 kbps	Rx sensitivity at channel 38 (freq. = 2426 MHz) with data rate 500 kbps		−100.0		dBm

LTE

Standard: CAT-M1, CAT-NB1, CAT-NB2

Table 4: LTE Frequency Bands (in MHz)

Band	Duplex	Uplink Freq. (MHz)	UL BW (MHz)	Downlink Freq. (MHz)	DL BW (MHz)	LTE-M	NB-IoT
1	FDD	1920 – 1980	60	2110 – 2170	60	Yes	Yes
2	FDD	1850 – 1910	60	1930 – 1990	60	Yes	Yes
3	FDD	1710 – 1785	75	1805 – 1880	75	Yes	Yes
4	FDD	1710 – 1755	45	2110 – 2155	45	Yes	Yes
5	FDD	824 – 849	25	869 – 894	25	Yes	Yes
8	FDD	880 – 915	35	925 – 960	35	Yes	Yes
12	FDD	699 – 716	17	729 – 746	17	Yes	Yes
13	FDD	777 – 787	10	746 – 756	10	Yes	Yes
14	FDD	788 – 798	10	758 – 768	10	Yes	Yes
17	FDD	704 – 716	12	734 – 746	12	No	Yes
18	FDD	815 – 830	15	860 – 875	15	Yes	Yes
19	FDD	830 – 845	15	875 – 890	15	Yes	Yes
20	FDD	832 – 862	30	791 – 821	30	Yes	Yes
25	FDD	1850 – 1915	65	1930 – 1995	65	Yes	Yes
26	FDD	814 – 849	35	859 – 894	35	Yes	Yes
28	FDD	703 – 748	45	758 – 803	45	Yes	Yes
66	FDD	1710 – 1780	70	2110 – 2200	90	Yes	Yes
85	FDD	698 – 716	18	728 – 746	18	Yes	Yes

Table 5: LTE Specifications

Parameter	Description	Min	Typ	Max	Unit
General
Power max.	Maximum power			23	dBm
Tx
Tx Power @Band 8 (900 MHz GSM)	Tx power at Band 8 (900 MHz GSM)		22	23	dBm
Tx Power @Band 2 (1900 MHz PCS)	Tx power at Band 2 (1900 MHz PCS)		22	23	dBm
Rx
Rx sens. @Band 8 (900 MHz GSM)	Rx sensitivity at Band 8 (900 MHz GSM)		−103	−100	dBm
Rx sens. @Band 2 (1900 MHz PCS)	Rx sensitivity at Band 2 (1900 MHz PCS)		−103	−100	dBm

LoRa(WAN)

Mode: LoRa RAW mode and LoRa WAN mode

LoRaWAN Node Type: Class Type A, Class Type C

Frequency Band: EU868, US915

Table 6: LoRa(WAN) Specifications

Parameter	Description	Min	Typ	Max	Unit
General
Freq. (EU)	Frequency band (EU)	863		870	MHz
Freq. (US)	Frequency band (US)	902		928	MHz
Power max. (EU)	Maximum power (EU)			15	dBm
Power max. (US)	Maximum power (US)			22	dBm
Tx
Tx power @866.4 MHz [EU868]	Tx power (Tx tone) at 866.4 MHz		14	15	dBm
Tx power @918.2 MHz [US915]	Tx power (Tx tone) at 918.2 MHz		21	22	dBm
Rx
Rx Sens. @866.4 MHz, BW=500 kHz, SF=12	Rx sensitivity at 866.4 MHz, 500 kHz bandwidth and SF=12		−127		dBm

Module Interface

Power Management

Table 7: Power Consumption by Mode of Operation

Mode of Operation	Min	Typ	Max	Unit
Idle (no radio but MicroPython is running)		30		mA
Light sleep (wake up or restart is required for MicroPython to run)		800		µA
Deep sleep (wake up or restart is required for MicroPython to run)		10		µA

Memory Allocation

Module OS firmware, OTA and user space sizes:

• Module OS firmware: 2,560 KB

• OTA1 space: 2,560 KB

• OTA2 space: 2,560 KB

• User space: 8 MB

Mechanical Specifications

Module Dimensions

All pins have a pin width of 0.7 mm with the exception of pin VBATT (pin #A4) with a 1.0 mm width.

Figure 4: F1 Smart Module Dimensions

Recommended PCB Landing Pattern

Figure 5: Recommended PCB Landing Pattern (Top View)

Recommended Soldering Profile

Figure 6: Recommended Soldering Profile

MicroPython

Device Programming via UART

• By default, the F1 Smart Module runs an interactive Python REPL (Read-Eval-Print Loop) on UART0 which is connected to P0 (RX) and P1 (TX) running at 115200 baud.

• The module can be connected via a development board or any USB UART adapter. Code can be run via the REPL and the SG Wireless Ctrl. Visual Studio Code plug-in can also be used to upload code to the board.

Module-supported Libraries

Table 9: F1 Smart Module Supported Libraries

Library	Description
Python Standard Libraries	array, asyncio, binascii, builtins, cmath, collections, errno, gc, gzip, hashlib, heapq, io, json, math, os, platform, random, re, select, socket, ssl, struct, sys, time, zlib, _thread
MicroPython-specific Libraries	Bluetooth, btree, cryptolib, deflate, framebuf, machine, micropython, neopixel, network, uctypes, esp, esp32
SGW3501 Module-specific Libraries	lte: Ready-to-use LTE CAT-M1/NB1/NB2 library lora: Ready-to-use LoRa RAW and full stack LoRa WAN device Class A, Class C library ctrl: Ready-to-use Ctrl Cloud Platform client library

Note

MicroPython documentation library with API function calls: https://docs.micropython.org/. Libraries may vary by version – please check the latest F1 Module firmware release note for the required library (pre-loaded onto Module).

Product Packaging

Modules are packed in tape-and-reel packaging and shipped out in carton boxes.

• Tape – MSL (Moisture Sensitivity Level): 3

• Reel – 250 pcs per reel

Note

All units are in millimetres.

Revision History

Version	Released Date	Description
1.0	Feb 7, 2024	Initial document release
2.0	Aug 8, 2024	Add Certification information

Certification

Model	Certification Type	Description
F1	CE Certificate	CE certificate of F1 (Type designation: SGW3501)
F1/C	CE Certificate	CE certificate of F1/C (Type designation: SGW3401)
F1/L	CE Certificate	CE certificate of F1/L (Type designation: SGW3201)
F1	FCC Certificates	FCC certificates of F1 (Type designation: SGW3501)