RadioHead Packet Radio library for 433MHz/868MHz
pi-gate® board

Version 1.67

This is a fork of the original RadioHead Packet Radio library for embedded microprocessors. It provides a complete object-oriented library for sending and receiving packetized messages via Semtech SX1276 chip on a range of embedded microprocessors.

Please read the full documentation and licensing from the original author site

features added with this fork

=================================

• Added driver for pi-gate® board
• Added samples for pi-gate® board

Driver code is located under /RH_PI-GATE.cpp and /RH_PI-GATE.h.
Sample code for Raspberry PI is located under /examples/raspi/pi-gate folder.

Installation on Raspberry PI

================================

You need install bcm2835 library

This library consists of a single non-shared library and header file, which will be installed in the usual places by make install

For Raspberry 2 - 3 change the line
#define BCM2835_PERI_BASE               0x20000000
to
//#define BCM2835_PERI_BASE               0x20000000
#define BCM2835_PERI_BASE               0x3F00000000

wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.55.tar.gz
tar zxvf bcm2835-1.55.tar.gz
cd bcm2835-1.xx
./configure
make
sudo make check
sudo make install

Clone repository

cd
sudo apt update
sudo apt install git
git clone https://github.com/gerrylenz/pi-gate

Problems

The bcm2835 library hang/crash with kernel 4.14.xx - 4.14.54
Latest stable firmware with kernel 4.9.80 is raspbian-2018-03-14 download

Solved

Add "dtoverlay=gpio-no-irq" in /boot/config.txt

Coding

================================

Connection and pins definition

Boards pins (Chip Select, IRQ line, Reset and TXE) definition are set in the /examples/raspi/pi-gate/GateDefinitions.h file. In your code, you need to include the file definition like this

#include "GateDefinitions.h"

Create an instance of a driver for 2 modules

//for 433Mhz Gate
RH_SX1276 rf433(RF433_CS_PIN, RF433_IRQ_PIN, RF433_RST_PIN);
//for 868Mhz Gate
RH_SX1276 rf868(RF868_CS_PIN, RF868_IRQ_PIN, RF868_RST_PIN, RF868_TXE_PIN);

Create samples

cd pi-gate/examples/raspi/pi-gate/
make
sudo ./multiserver