add support for Raspberry Zero

README.md

@@ -156,6 +156,9 @@ Connect such a sensor to a GPIO pin as described on the [node-dht-sensor](https:
 	PLACEHOLDER for the next version:
 	### **WORK IN PROGRESS**
 -->
+### **WORK IN PROGRESS**
+* (jangatzke) add support for gpios on Raspberry Zero.
+
 ### 2.0.1 (2024-10-07)
 * (Garfonso) make gpio library required dependency
 * (Garfonso) make errors clearer, if gpio library could not be initialized.

lib/gpioControl.js

@@ -7,6 +7,13 @@ const util = require('util');
 const exec = util.promisify(require('node:child_process').exec);
 
 function getRaspberryModelFromCpuInfo(cpuinfo) {
+    //Zero reports: Raspberry Pi Zero 2 W Rev 1.0
+    // RPi Zero family has a different naming.
+    // All Rpi Zero share the same ChipNum as RPi 1 and thus can all be handled as a Rpi 1.
+    if (cpuinfo.includes("Zero")) {
+        return 1;
+    }
+
     const modelRegEx = /^Raspberry Pi (\d+) Model.*/mi;
     const model = modelRegEx.exec(cpuinfo)[1];
     return Number(model);