Dallas ds18b20 with Raspberry Pi Pico (rp2040): pull-up P-MOSFET gate and alarms
This article expands on the previous about the connection of DS18B20 sensors to a Raspberry Pi Pico using the OneWire protocol. It covers the use of a P-MOSFET gate as a pull-up resistor for the OneWire bus to improve communication reliability, as well as implementing temperature alarms triggered by a threshold. The article provides step-by-step instructions and code examples for incorporating these features. The goal of the article is to provide readers with advanced techniques for using DS18B20 sensors with a Raspberry Pi Pico.