LILYGO TTGO T-OI PLUS is currently available and sells on Aliexpress for $4.98 plus shipping. The code is fully written in C++ though the available documentation was initially written for T-OI ESP8266 and may require a little tweaking to work properly. Dimensions: 45.7 mm x 25.8 mm x 15.8 mmĬode for TTGO T-OI PLUS can be found on Github as made available by LILYGO.Battery holder for 3.7V 16340 LiPo battery plus charging circuit.2x 8-pin headers with 12x GPIO, 1x SPI, 1x UART, 3x ADC, 5V, 3.3V, GND. IEEE802.11b/g/n-compliant, Support stations, SoftAp, SoftAp + station mode.3 x SPI, 2 x UART, 1 x 12C, 1 x 12S, LED PWM, TWAI, Timers, RMT, full-speed USB serial.400KB SRAM, 384KB ROM and 8KB SRAM in RTC.Espressif Systems 32-bit ESP32-C3 single-core RISC-V processor with:.The TTGO T-OI PLUS board also has the same headers pinout with the T-OI ESP8266 board, so it’s safe to say that both have expansion modules that are compatible.įeatures and Specifications of the board include: This tweak however lowered the overall deep sleep current from 1mA to 110uA, which undoubtedly is acceptable if one would like to prevent quick battery discharge. A GitHub user who made a little tweak with the board said the Red LED can be killed manually by taking it off with a screwdriver. The board also comes with 3 LEDs - Green (indicates communication over UART), Blue (charging indicator) and Red (always-ON power indicator). The board’s battery level can be monitored with software with a few lines of code to read the voltage divider signature on its Pin A0. The TTGO T-OI PLUS is furnished with the capability of charging the LiPo battery attached through its charging circuit. The new board, aptly named LILYGO TTGO T-OI PLUS consumes lesser power as its SoC single-core RISC-V processor uses 5uA and 130uA in deep and light sleep modes respectively in contrast to its counterparts’ ESP8266 and ESP32 which consume approximately 20uA and 2000uA in deep and light sleep modes respectively. LILYGO® has just launched an ESP32-C3 board with a rechargeable 16340 battery holder. What can be better than ESP8266 and ESP32? Maybe a battery-powered ESP32-C3 board designed to provide lower power consumption.
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