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Hello guys, Recently, I have been building a tracked robot that moves autonomously (avoiding obstacles, etc.). I bought new components that I soldered onto my prototyping board. Before coding, I […]
I am trying to design an automatic water filling system for my coffee machine. I need to design and make two non-contact non-immersion level sensors for the water tank. Ideally […]
newbie question – what type of circuitry we use to convert 3.3 to 5v dc? i want it for my flight controller
Hi, I bought a kit on Amazon that I’m trying to control with an ESP8266. I’ve successfully uploaded the code to the ESP8266 and can monitor the readings from a […]
Has anyone ever got the CH224K to work correctly? For some reason it doesn’t seem to be able to request voltages above 9V. Only 5V and 9V are possible.
I want to know when the batteries of a model are getting low. The 5 AA batteries are over 5 volts so I cannot check the end voltage. I make […]
I’m using a circuit that gives a LOW output on D when a magnet passes by the reed switch. Is there a way to make it output HIGH instead? (HIGH […]
Related question: I’ll likely use an ATtiny85 for this project, meaning limited IO pins (WIP schematic pictured). I’ll mostly be listening for signals with a software serial Rx pin, but […]
Those of you that use a CR2032 battery, have you ever looked at the datasheet? Per this one https://www.mouser.com/datasheet/2/315/3627_fileversion-1627278.pdf for instance, using just 2mA drops the capacity significantly in terms […]
