raspberry pi
Add LoRa Long-Range Radio to Your Raspberry Pi Pico This Weekend
Send sensor data up to 15km from a Raspberry Pi Pico with a plug-in LoRa module and a LiPo battery. A cheap weekend build…
diy projects
Build Your Own ESP32 Walkie-Talkies With ESP-NOW
A pair of XIAO ESP32S3 boards plus ESP-NOW make 3D-printed walkie-talkies that hold a voice link past 200 meters, no Wi-Fi or cell signal…