R Tyler Croy 🦀I was unable to find any suitable little wifi temp/humidity sensors, so I am considering building one with an Arduino Nano. Getting the cost per unit under $25 is going to be tricky :/
Steffen Gebert
I had not seen this project, so no :) I have seen some of the ESP boards though
Jeremy, aka Jaharmi@rtyler I’d have to look at the BOM, but I think all of my #DFRobot #Firebeetle ESP32s with basic temp/humidity sensors have been under than price — even given the relatively high price for #DFRobotGravity cabling — minus a fancy case and power source. I’ve repurposed leftover plastic containers with lids from the grocery store as cases, and just about any USB-A power adapter works. I run them with #ESPHome.
On AdaFruit an ESP32 is ~$20 which doesn't leave much more budget to get sensors in place, not the end of the world but annoying
Clayton O'Neill@rtyler if you're not in a hurry, you can get bme280s for <$2 each and and ESP32s from reputable stores for $6.50 from AliExpress. (https://www.aliexpress.us/item/2251832622236364.html & https://www.aliexpress.us/item/2251832676130412.html)
@rtyler Also, ESP8266 chips are completely sufficient for this and they're smaller boards and even cheaper.
@rtyler I use the #DFRobot #Firebeetle, which is under $10. Direct: https://www.dfrobot.com/product-1590.html Quicker US availability from #DigiKey at: https://www.digikey.com/short/wb8tj530 There are other options, including models with USB-C. If you don’t want to solder, #Gravity cabling plus DFRobot sensors works. Worth checking out.
@rtyler its a different flavor of YAML hell. I've set up one sensor for my #homeassistant and was deeply impressed by the user experience - including the use of WebSerial to flash firmware through a browser. Was mind blowing for me.