Sim808 shield arduino AT+CGSNPWR=1 Error

userHead azirakamel 2018-05-24 02:10:58 2992 Views1 Replies
Hi guys,

I bought a new Sim808 shield recently, and I have pluged a 9V adapter in Uno's Jack, and now I'm trying some AT commands, when I try AT+CGSNPWR=1 it always says ERROR, can anyone tell me how I can solve this please?
2018-05-24 17:14:50 What about other AT command? and the GPS only work outside, you need to type the command when the module is outside. userHeadPic robert.chen