ESP8266 Mini-Dev BTB Platform Board

Description

Based on ESP8266 MCU+WIFI solution, on board battery charge and use function, support all of our this series child board via on board connector, plug to use.

Board Features:

• Reset and IO0/PROG button, power and IO2 led.
• Default I2C pull-up resistors on pin IO4 and IO5
• On board CP2104 auto-download USB-TTL bridge
• Lead out all pins

Board Power Features:

• On board TP4067 battery charger:
  • Up to 600mA charge current
  • Charge and standby led indicator (front)
  • Support anti-reverse direction by chip
  • Default for 4.2V lithium battery, also customizable for 4.35 or 3.6V LFP battery
• Power supply auto-switch between USB supply+charge or battery supply.
• On board 1.25mm battery connector, or reserved to support CR123A battery connector
• One power on/off switch

Board Connector Features:

• Board-to-board connector, plug in to use, without any wirings.
• Can be futher lock by 2mm screw hex spacer.
• Connector pin definitions please see on this page.
• UART interface is selectable by jumper. And can be connect to ESP8266 hardware UART TXD/RXD or software UART IO12/IO14.
• Tested with ESY-LINK, child board can be remotely control by WIFI to hardware UART.

Shipment includes: main board, 1.25mm battery one-end male 10CM cable.

More documentation please see on this page.