Node-Red Objects, Flow Variables and Json
I like to use flow variables because all nodes have access to them. You can take the flow variable to the next step by creating a flow object. First, you…
Can a Raspberry Pi Zero W Find True Love? Part2
Last time, we left the ESP32 ADC Hat by the phone, waiting for a call from Raspberry Pi Zero W. Our RPI Zero W knows that finding the perfect mate…
Can a Raspberry Pi Zero W Find True Love? Part 1
Don't worry, this story has a happy ending. First we have to find a compatible mate for the RPI Zero W. Well, what better mate than our ESP32 6 channel…
Crazy Raspberry Pi flying Hat
What the, is a flying hat? Well is a hat that can be detached from the Pi and still works. Of course, it needs power. In the picture, the 6…
Raspberry Pi ADC ESP32 Hat Incredibly Measures ±12v With Great Accuracy
Using an ESP32C3 to implement an ADC Hat for the Raspberry PI poses some challenges if we want to obtain great accuracy in the range of 1%. First, we add…
Raspberry PI zero W ADC
We are designing an add-on to give the Raspberry Pi and the PI zero W 6 channels of 12 BIT ADC. The big question is: should we put components on…