I have a program where specific SMS sent to a GSM module turns one LED on. Then i have another condition if that LED is on and if ultrasonic sensor detects object closer than 20cm to it, it should call specific phone number. It all works properly until i take of GPRS GSM shield off the supply and pl…

GSM GPRS sim900 shield doesn't work properly afte turning it on

kgray9 September 2, 2021, 11:45am 6

You probably should remove your phone number when posting code. I am checking through it right now.

Topic		Replies	Views
GSM shield interrupts work of ultrasonic sensor Programming	1	465	December 31, 2021
Please help us to solve this issue for our thesis project. Sensors	7	1256	May 6, 2021
seeedstudio GSM not responding Programming	34	8775	May 5, 2021
Ennesimo problema GSM shield... Generale	14	4388	May 7, 2021
GSM SIM900 not receiving/sending sms? Programming	13	14061	May 5, 2021