SIM900a Modem IMEI 0, Help with TX RX Pins - Microcontrollers - Arduino Forum
Hello I have Simcom SIM900a GSM (SIM900 (SIM900A) Mini DEV Board v3.9.2) and I am interfacing it with Arduino UNO. I have no idea how to connect SIM900a to Arduino UNO. What I did now is: I connect the following Pin from above Image to: 5 to: GND (Digital GND near Pin 13) 6 to: 5V of Arduio 2 to: GND of Arduino near 5V 3 to: Digital Pin 0 of Arduino (RX) 4 to: Digital Pin 1 of Arduino (TX) 1 to: (No idea) From Picture option 7, 8, 9 are not connected to anything. Can you please gu
Support of GOOUUU TECG IOT-GA6 : reflash the firmware ! · Issue
Arduino Sim900a Gsm Module Interfacing With Arduino Uno
serial - How to interface arduino nano with sim900A? - Arduino
SparkFun Cellular Shield - SM5100B - CEL-09607 - SparkFun Electronics
Enviando SMS e Fazendo Chamadas com o Arduino GSM Shield - MakerHero
GSM Initialisation eror- SIM PIN number disabled - #28 by system
Support of GOOUUU TECG IOT-GA6 : reflash the firmware ! · Issue #164 · vshymanskyy/TinyGSM · GitHub
Sending SMS & Call with GSM Module and Raspberry Pi 4 - The
Sim900 GSM Module Interfacing to Arduino : 3 Steps - Instructables
Showing results of SIM900a in serial monitor - Project Guidance
serial - No communication with SIM900A using Arduino Uno
alselectro All about Microcontrollers,Tips on Pc,Android phone
SIM800L & SIM800L EVB v2.0 - Variations and wiring - General
Help for (GSM SIM900A) Part - parts help - fritzing forum
SIM900 GSM GPRS Shield with Arduino