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Topic: problem in arduino uno and sim900 shield gprs /gsm shield logical (rx &tx) (Read 145 times) previous topic - next topic

rezahili





these is my shield , it's right but the logical communication (rx and tx ) between it and arduino uno doesn't work. i think
(rx & tx) supply are 0 & 5 but for this shield is 0 & 2.8  , what am i to solve this problem?

dannable

Use jumper wires?

If you had provided a link to the actual shield then the advice might be more specific.
Beginners guide to using the Seeedstudio SIM900 GPRS/GSM Shield

dannable

Beginners guide to using the Seeedstudio SIM900 GPRS/GSM Shield


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