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+--- Thread: a16v3 rf433 pins/other free pins for sim800l (/showthread.php?tid=8116)
a16v3 rf433 pins/other free pins for sim800l - rhaenx - 05-28-2025
hi. I have just buy a16v3. I buy without the rf433 transmitter and receiver. Can I use this pins for other purpose? I want to connect to sim 800l or similar board that can send/receive sms.
the free gpio pin on the board next to esp32 chip i cannot use because i cannot use soldering due to health problem. i have to find a friend or pay someone else to help me solder, before i try this i want to ask if other free pin that do no need to solder i can use for this purpose.
thank you for your time.
RE: a16v3 rf433 pins/other free pins for sim800l - admin - 05-28-2025
RF433 send pin can use directly, but RF433 receiver pin can use directly, it include logical convert chip, not connect with ESP32 pin directly. i suggest you use free GPIO beside ESP32 module on PCB.