get GPS location using GPS GPRS/GSM module arduino uno compatible

arduino based code for adafruit fingerprint sensor interfacing with arduiono mega or uno or higher boards

GSM for arduino uno R3 that allows you

下载到arduino uno，直接将TX、RX与ESP8266 TX、RX以并行线相连，可以实现将arduino uno开发板当成USB_TTL转换芯片，终于不需另外购置劣质转换产品了。(Download to Arduino uno, directly connect TX, RX and ESP8266 TX and RX to parallel lines, and realize Arduino uno development board as USB_TTL conversion ch