Last Updated or created 2022-04-05
A fancy keyboard….. At last a clickety keyboard. A Razer Blackwidow V3 mechanical keyboard. I’m not a gamer, but i like the clickety sounds. RGB leds are always nice to play with.
One of the nice things about razer is the Linux support!
Some nice links:
Even several python scripts can be found, but no MQTT.
So made a fast ‘n simple hack to control my keyboard with mqtt/nodered.
When someone is at the frontdoor, my keyboard changes from white to red.
Below a node-red example
My python code:
import paho.mqtt.client as mqttClient import time import os import subprocess import json def on_connect(client, userdata, flags, rc): if rc == 0: print("Connected to broker") global Connected Connected =True else: print("Connection failed") def on_message(client, userdata, message): subprocess.Popen(["razer-cli", "-c", message.payload]) Connected = False broker_address = "your.mqtt.brokerip.here" port = 1883 #user = "user" #password = "password" client = mqttClient.Client("mqttrazer") #client.username_pw_set(user, password=password) client.on_connect = on_connect client.on_message = on_message client.connect(broker_address, port=port) client.loop_start() while Connected != True: time.sleep(0.1) client.subscribe('razer/in') try: while True: time.sleep(1) except KeyboardInterrupt: print ("exiting") client.disconnect() client.loop_stop()