Wiring SIM800L↵
Make sure to switch to 5V on USB2TTL serial adapter
Wiring USB2TTL↵
| VCC | to | VCC |
|---|---|---|
| GND | to | GND |
| RX | to | TX |
| TX | to | RX |
Additional power information↵
IMPORTANT!!!
- SIM800L needs external power supply 5V/2A
- This can be bypassed with capacitor 16V 2200uF and provide stability during Calls & SMS due to higher power draw.
-
Soldering could be dangerous due to high heat 🔥 and fume exhausts 💨, so if unsure how to do it properly you could ask local repair shop to do it for you!
-
Capacitor Wiring↵
| VCC | to | VCC |
|---|---|---|
| GND | to | GND |
✏️ Last Change:
📖 Publication Date: 2026-08-25 10:06