screamer21 for programming there is a nice guide here: https://www.zigbee2mqtt.io/information/alternative_flashing_methods.html You do not need the Cc-debugger or the cable if you have access to an arduino or RPi or NodeMCU or ESP8266.

screamer21 One word of warning; this is available in 5V and 12V version, make sure you order the right version i.e. 12V refers to the DC input voltage and is matched by the relay modules. Whilst in principle you could convert 12V to 5V it would cost you more in components than buying the required version.Nice hardware with plenty of potential, only challenge is the total lack of documentation provided by the seller. The software in the ESP01/8266 module really sucks, nice idea but this not really usable (I hate having a separate App for each IoT device) and if you are using IOS forget it. I was able to flash the ESP01/8266 with tasmota, which opened a much larger set of possibilities. Getting the tasmota configuration right was challenging but it eventually worked. In case you are searching for more info here are the link I found:Original manfuacturer datasheet:http://www.lctech-inc.com/cpzx/1/54.htmlor, translated:https://translate.google.com/translate?hl=