Stamp-S3Bat

SKU:S015

Description

Stamp-S3Bat is an embedded core module with integrated power management. It uses the ESP32-S3-PICO-1-N8R8 as the main control core, supporting 2.4GHz Wi-Fi, with built-in 8MB Flash and 8MB PSRAM. The module leads out a total of 11 GPIOs and 1 wake-up IO, and is equipped with a 24P BTB connector (supporting DVP interface). The onboard battery power interface is used for external 3.7V lithium battery power supply. It features the built-in M5MP1 multi-level power control design, supporting power input/output control, lithium battery charging management, and status detection such as input voltage and battery voltage. It also supports external low-power wake-up functions; after the main controller enters a low-power sleep state, the power can be restarted via the external wake-up IO. The module features an onboard programmable RGB LED and adopts a 2.54mm standard pitch half-hole pad design, supporting various integration methods such as SMT and DIP, making it convenient for developers to quickly build IoT applications.

Tutorial

Arduino IDE

This tutorial introduces how to program and control Stamp-S3Bat using Arduino IDE.

Features

Integrated ESP32-S3-PICO-1-N8R8 controller
8MB Flash and 8MB PSRAM
24P BTB connector (supports DVP interface)
M5PM1 low-power power management
11 x GPIO leads + 1 x wake-up IO
1 x RGB LED
Power Supply:
- 3.7V battery power supply
- USB Type-C / DC 5V
2.54mm standard pitch

Includes

1 x Stamp-S3Bat
1 x SH1.0 battery connection cable

Applications

IoT project development

Specifications

Specification	Parameter
SoC	ESP32-S3-PICO-1-N8R8 @Dual-core Xtensa LX7 processor, main frequency up to 240MHz
Flash	8MB
PSRAM	8MB
Wi-Fi	2.4 GHz Wi-Fi
Input Power	3.7V battery power supply / USB Type-C / DC 5V
RGB LED	1 x WS2812
Battery Interface	SH1.0
Pad GPIO Leads	11 x GPIO (G1/G2/G3/G4/G5/G6/G7/G8/G9/G10/G11) + 1 x Wake-up IO (PY_G4_WAKE)
BTB Interface GPIO Leads	19 x GPIO (G40/G38/G12/G13/G14/G15/G16/G18/G21/G46/G45/G41/G43/G42/G39/G17/G44/G47/G48)
BTB Connector	BTB0.408-24PLBDR-M41, 12*2P-FPC direct plug - Black, pitch 0.4mm
Antenna Connector	IPEX-4
Battery Connector	SH1.0-2P
Antenna Type	FPC Antenna
Operating Temperature	0 ~ 40°C
Power Consumption	Sleep mode: 4.2V@13.43uA Standby mode: 4.2V@955.36uA Light load mode: 4.2V@26.83mA Full load mode: 4.2V@27.49mA
Product Size	29.8 x 18.0 x 5.5mm
Product Weight	3.6g
Package Size	44.0 x 32.5 x 17.0mm
Gross Weight	8.3g

Learn

Download Mode

Connect the device to the computer via a USB cable, long press the PWR button for about 3s to enter download mode, and wait for burning.

Power On/Off

Single click the PWR button to power on / reset:

Double click the PWR button to power off:

Housing Disassembly

Note

Before welding or surface mounting the module, the housing and Wi‑Fi antenna must be disassembled first, otherwise damage to the antenna or housing may occur. Please refer to the disassembly tutorial video below for specific operations.

Power Supply

The module supports the following three power supply methods. Note that if powered through the 3V3 interface, the module's EXT_5V will not be able to output normally.

3.7V lithium battery power supply
USB Type-C power supply
DC 5V power supply

Schematics

Stamp-S3Bat Schematics PDF

1/1

PinMap

ESP32-S3	G47	G48
M5PM1(0x6E)	SCL	SDA

M5PM1

M5PM1	G0	G1	G2	G3	G4	PY_LED_PP	CHG_EN_PP
RGB LED	NeoPixel					PY_LED_EN
Charge			PY_G2_CHG_STAT	PY_G3_CHG_PROG			CHG_EN
5VOUT		5VOUT_EN
Ext Wakeup					PY_G4_WAKE

Switch charging IC charging current via PY_G3_CHG_PROG (Low: 650mA / Floating: 200mA)

BTB

PIN	LEFT	RIGHT	PIN
G40	1	2	G46
G38	3	4	G45
G12	5	6	G41
G13	7	8	U0TX / G43
G14	9	10	G42
G15	11	12	G39
G16	13	14	GND
G18	15	16	G17
G21	17	18	U0RX / G44
3V3_L2	19	20	SCL
SYS_VBUS	21	22	GND
SYS_VBUS	23	24	SDA

Model Size

Stamp-S3Bat Model Size PDF

PCB

Datasheets

Softwares

Arduino

Protocol

M5PM1 Power Management Chip

Product Comparison

Product Compare	Stamp-S3Bat DIP	Stamp-S3Bat
Whether the pin header is soldered	Yes	No

If you need to compare the product information of the Stamp series, you can visit the Product Selection Table, and check the target products to get the comparison results. The selection table covers key information such as core parameters and functional features, and supports synchronous comparison of multiple products.

Video

Stamp-S3Bat / Stamp-S3Bat DIP Product Introduction and Functional Demonstration