Unexpected Maker has launched a follow-up to the ESP32 based TinyPICO board with TinyS2 board equipped with an ESP32-S2 WiFi processor featuring 4MB flash and 2MP embedded PSRAM.
The new board is still designed with a LiPo battery charging circuit, comes with an onboard RGB LED, and while it is compatible with TinyPICO form factor, it has become a little longer with a 41 x 17.8mm footprint to accommodate for extra I/Os.
- WiSoC – Espressif Systems ESP32-S2FN4R2 single-core processor @ 240 MHz with 4MP SPI flash, 2MP PSRAM
- Connectivity – 2.4 GHz 802.11b/g/n WiFi 4 plus 3D antenna
- USB – 1x USB Type-C port for power and programming
- Expansion – 12 + 11-pin headers for up to 17x GPIOs, SPI, I2C, UART, ADC, DAC, 5V, 3.3V and BAT signals
- Misc – Boot and Reset buttons, battery charging status LED, power LED, user-programmable RGB LED that can be shut down to reduce deep sleep current
- Power Supply
- 5VDC input via USB-C port
- PMIC for single-cell LiPo battery connected through PH connector
- 700 mA 3.3 V LDO regulator
- VBAT and 5V Sense pins
- Dimensions – 41 x 17.8 mm
It’s not the first ESP32-S2 board that works with LiPo battery, as Olimex ESP32-S2 LiPo boards were launched in February with a power consumption as low as 20 uA in deep sleep mode. Unexpected Maker did not provide power consumption numbers for TinyS2, or I missed them.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.