sounds like nice projects, but from my experience the maintenance costs are much higher than the pure hardware costs. In addition, certification costs shouldnt

sounds like nice projects, but from my experience the maintenance costs are much higher than the pure hardware costs. In addition, certification costs shouldnt be underestimated, especially for radios - so any m2 / minipcie solution for lower volumes is much cheaper. Lilygo [1] got quite impressive low cost devices... but there its the same, limited certification and not sure about industrial temperature/humidity capabilities. [1] https://www.lilygo.cc/products/t-sim7600 https://www.lilygo.cc/products/t-sim7600