The pico has a buck-boost converter on board. So no need for an extra converter (step-up converter U3V16F5).
This NRF24L01 2.4GHz module does not allow great distance. Perhaps an option to use a pico W instead. Or look for something like a HC-12.
Instead of DHT11, BMP280 you could look for a BME280.
If the installation goes to the outside, then temperature < -20°C 'are not good' for the lipo. Charge temperature should be > 0°C, so perhaps better to have a second battery for exchange which is charged at room temperature inhouse.
Higher temperatures > 60°C must be avoided.
In my devices, I use 18650 cells with included protection chip. Difficult to get battery holder for the longer cells, but it does not need an additional protection board on site.
This NRF24L01 2.4GHz module does not allow great distance. Perhaps an option to use a pico W instead. Or look for something like a HC-12.
Instead of DHT11, BMP280 you could look for a BME280.
If the installation goes to the outside, then temperature < -20°C 'are not good' for the lipo. Charge temperature should be > 0°C, so perhaps better to have a second battery for exchange which is charged at room temperature inhouse.
Higher temperatures > 60°C must be avoided.
In my devices, I use 18650 cells with included protection chip. Difficult to get battery holder for the longer cells, but it does not need an additional protection board on site.
Statistics: Posted by ghp — Sat Dec 14, 2024 6:28 pm