I have a couple of new wifi projects I’m working on, and was getting the message to upgrade my firmware on the WiFi shield, as well as the browser was not able to load the web page on the Arduino.

Why did I order twenty 555 bipolar timers? Because they were $5.97 with free shipping. Now what do I do with them? Monostable mode: in this mode, the 555 functions as a “one-shot”. Applications include timers, missing pulse detection, bounce

Yes, it’s another barebones Arduino, but the additional prototyping space makes it a unique and very handy board to have. The Atmega328 is socketed, so if you do something crazy, you are back in business for under $5. At a

Would you like a complete 2m / 1.25m / 70cm ham radio that connects like a shield to an Arduino? Can be used with a Raspberry Pi as well. Onboard Lipo charger / controller also powers your Arduino. Make your

The Arduino Uno has 6 analog inputs, designed for measuring a voltage. Other versions of the Arduino can have several more. Voltages are analog, meaning they can have a range of values, versus digital, which only has two, on or

Current shunts are very popular with the Ham Radio, boating, electric vehicle and solar / wind off grid folks, as they allow them to monitor solar and wind power production, power consumption of devices, and the estimated amp hours left