I have an arduino uno card linked with a shield Sim808 and I want to feed it at the beginning I chose a 9v battery arduino uno card was well fed after I press the button (PWRKEY) so that the LED net flashes but the problem the LED starts flashing but after it goes out gold it must always flash for t…

problem with power shield sim808

enizar May 26, 2018, 11:23pm 2

Please do you have any idea about this problem

Topic		Replies	Views
Uno and SIM900 card GSM Shield	5	1579	May 6, 2021
Can't connect SIM 900 Shield to Arduino UNO 3rd Party Boards	20	10807	May 6, 2021
Sim module (sim900, sim800L) power supply problem GSM Shield	1	1270	May 6, 2021
SIM808 Conexión Hardware	6	1659	May 7, 2021
External supply (9V battery) not working when WiFi shield is attached IDE 1.x	6	2031	May 5, 2021