T‑Call V1.4 — ESP32 Module with SIM Development Board LILYGO®

LILYGO® TTGO T‑Call V1.4 SIM800L ESP32 Wire­less Mod­ule SIM Anten­na WiFi Blue­tooth Devel­op­ment Expand Board Devk­it for Arduino.SpecificationsMCUESP32GSM/GPRSSIM800LSIM Nano Card SlotYes [2G]ESP32Clock Speed240MhzFlash4MBPSRAM8MBWire­less Con­nec­tiv­i­tyWi-Fi: 802.11 b/g/n Blue­tooth: v4.2 BR/EDR and BLEBut­tonENCharg­ing ICIP5306Ser­i­al ChipCH9102Periph­er­al Inter­faces I2C、SPI、UART、SDIO、、I2S、CANPow­er Sup­plySup­port USB Type‑C / Li-Po Bat­tery Dual Pow­er Sup­plyJST Con­nect type : JST PH 2pin 2.0mm[USB can pow­er the bat­tery]Oth­ersSup­ports pin exten­sion of Mic and Speak­er[Ship with­out mic and speak­er by default]NoticeCon­nect the pow­er sup­ply, click to start, after the start, click to reset, and click twice to shut down.Due to the work­ing mode of the IP5306 chip, will restart when switch­ing the pow­er sup­ply mode. If require in the appli­ca­tion sce­nario, rec­om­mend buy­ing the AXP192@PMU ver­sion. Board DimensionsCAUTION Packing List1 X T‑Call V1.41 X Pow­er Cable(PH 2pin 2.0mm)1 X SIM Antenna(~7 cm)2 X Pin ResourcesGitHub [All Resources]Prod­uct Doc­u­mentFlash MicroPy­thon to ESP32