This can 2nd version of the customized arduino-compatible UNO R3 board, fully compatible with the arduino official version, but replaced some expensive parts and more extra pins lead out. Cost down but maybe better performance.
- CH340 VIS Duino Driver Download.
- Replace the expensive 16u2 USB-TTL IC to CH340 IC, cost nearly half, and can avoid the 16u2 driver compatibility problem which found on some win7/win8 OS.
- Replace the main IC atmega 328 PTH to atmega SMD QFP.
- Replace the large USB-B to modem USB micro USB.
- Reserved extra male pins holes, so both female and male pins available on board.
- Reserved another 2×4 pin holes, next to ISCP, pins includes: TX, RX, VCC, GND, IIC-SCL, IIC-SDA
- All the rest features are kept the same as the official version.