i designed a new board were a TTL 3.3v signal is suppose to transmit through a modem. But when i tried connecting a ttl signal the voltage level is dropping form 3.3v to 2v. Please anyone suggest a solution to avoid the same.
Ummm... yes. But if everything is a commercial module, then we need their schematics and datasheets. Particularly of the module with 3.3V in and 2V out.Hi , basically i am connecting Pixhawk Cube Telemetry to radio, and it is a direct connection. is schematic really needed here?
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