This post will provide some experiences with the Kauf RGBWW Smart Bulb and firmware developed with the Arduino IDE.  Details about these bulbs can be found on GitHub, https://github.com/KaufHA/kauf-rgbww-bulbs or from the manufacturer’s website, https://kaufha.com/ I referenced this post about the bulb, https://digiblur.com/2021/09/15/preflashed-esphome-tasmota-smart-bulbs-with-an-added-bonus-kauf-blf10/.  It mentions that a new firmware can be uploaded through the device web interface.  My attempts to upload firmware compiled in the Arduino IDE were not successful. Initially I thought it was an incorrect OTA flash size … Continue reading Kauf RGBWW Smart Bulb ESP8266 Firmware