Show HN: OS3-RNode, an RNode-Compatible LoRa Modem on CH32V003
10 hours ago
- #Embedded Systems
- #LoRa
- #Reticulum
- RNode-compatible firmware for CH32V003 with E22-900M22S LoRa module enabling minimal Reticulum transport.
- Supports UART host interface, SX1262 radio control, LoRa TX/RX, and interoperability with RNSD, Sideband, and NomadNet.
- Hardware constraints: 16 KB flash and 2 KB RAM, with stable operation in limited footprint.
- Implements RNode packet handling up to 508-byte MTU, including split-packet TX/RX for larger messages.
- Firmware serves as practical transport and demonstration of event-driven systems on constrained hardware.