Description The M5Stack M5StampS3 BAT is a compact Stamp-S3Bat module with integrated power management for battery-powered IoT development. It uses the ESP32-S3-PICO-1-N8R8 controller with 8MB Flash, 8MB PSRAM and 2.4GHz Wi-Fi, and provides a battery connector for an external 3.7V lithium battery. The Stamp-S3Bat module integrates M5PM1 multi-level power control for power input/output management, lithium battery charging control, input-voltage and battery-voltage status detection, and low-power wake-up through a dedicated wake IO. The product is available as a compact half-hole version and a DIP version with pre-soldered 2.54mm headers. Features ESP32-S3-PICO-1-N8R8 controller with dual-core Xtensa LX7 processor up to 240MHz. 8MB Flash and 8MB PSRAM for embedded IoT applications. 2.4GHz Wi-Fi wireless connectivity. Integrated M5PM1 low-power power management design. Battery connector for external 3.7V lithium battery power. Supports USB Type-C, DC 5V and battery power input. 11 GPIO leads, 1 wake-up IO and 24P BTB connector supporting DVP interface use. Programmable RGB LED based on WS2812. Half-hole SMT/DIP integration option and DIP version with 2.54mm standard pitch headers. Specifications Specification Parameter SoC ESP32-S3-PICO-1-N8R8, dual-core Xtensa LX7 processor up to 240MHz Flash 8MB PSRAM 8MB Wi-Fi 2.4GHz Wi-Fi Input Power 3.7V battery power, USB Type-C, or 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 x 2P FPC direct plug, 0.4mm pitch Antenna Connector IPEX-4 Battery Connector SH1.0-2P Antenna Type FPC antenna Operating Temperature 0 ~ 40C Power Consumption Sleep mode: [email protected] mode: [email protected] load mode: [email protected] load mode: [email protected] Product Size Without header version: 29.8 x 18.0 x 5.5mmWith 2.54mm header version: 29.8 x 18.0 x 12.0mm Product Weight Without header version: 3.6gWith 2.54mm header version: 4.5g Package Size 44.0 x 32.5 x 17.0mm Gross Weight Without header version: 8.3gWith 2.54mm header version: 9.4g Applications Battery-powered IoT project development. Compact wireless controller nodes. Low-power embedded monitoring devices. Prototype boards and custom PCB integration. Product List Without 2.54mm header pin version: 1 x Stamp-S3Bat, 1 x SH1.0 battery connection cable With 2.54mm header pin version: 1 x Stamp-S3Bat DIP, 1 x SH1.0 battery connection cable Other Content Download Mode Connect the device to a computer with a USB cable, then hold the PWR button for about 3 seconds to enter download mode and wait for flashing. Power On and Off Single-click the PWR button to power on or reset. Double-click the PWR button to power off. Housing Disassembly Before soldering, SMT, or surface mounting, disassemble the housing and Wi-Fi antenna first to avoid damaging the antenna or housing. Power Supply The module supports 3.7V lithium battery power, USB Type-C power and DC 5V power. When powered through the 3V3 interface, EXT_5V does not output normally. M5PM1 Power Management Charging current can be switched through PY_G3_CHG_PROG. Low level selects 650mA, while floating selects 200mA. Resources Stamp-S3Bat Product Documentation Stamp-S3Bat DIP Product Documentation Stamp-S3Bat Arduino Quick Start Stamp-S3Bat M5PM1 Power Management Guide Stamp-S3Bat Schematics PDF Stamp-S3Bat Model Size PDF Stamp-S3Bat DIP Model Size PDF Stamp-S3Bat PcbDoc Hardware Files Stamp-S3Bat KiCad Footprint Library Stamp-S3Bat Structure Files Stamp-S3Bat DIP Structure Files M5PM1 Power Management Chip Datasheet FAQ What is the M5Stack M5StampS3 BAT used for? It is used as a compact ESP32-S3 controller module for battery-powered IoT devices, wireless nodes and custom embedded hardware. What is the difference between the two versions? The without-header version uses the compact Stamp-S3Bat form factor, while the header version is the Stamp-S3Bat DIP with pre-soldered 2.54mm standard pitch headers. Does the Stamp-S3Bat module support battery power? Yes. It includes an SH1.0-2P battery connector for external 3.7V lithium battery power. What memory does it include? The controller integrates 8MB Flash and 8MB PSRAM. How does it enter download mode? Connect it by USB, hold the PWR button for about 3 seconds, and then wait for the flashing process. Can it wake from low-power sleep? Yes. After the main controller enters low-power sleep, the power can be restarted through the external wake-up IO.
