Saturday, November 21, 2015

Arduino Controlled Adjustable Constant Current Source

Did you know you could use the Arduino to control the amount of current from a constant current source? Another great project from Henry's Bench, this experimental project uses an MCP4725 Digital to Analog Converter, an LM358 Op Amp, an INA219 Current Sensor and a logic level N-Channel Mosfet to create a constant current source. You can program up to 3 amps of constant current.

Hot Tentacle Action

What happens when you combine an arduino, a servo, and a rubber tentacle. Well, it could be madness, or it could be a knife wielding tentacle bot. Either way it's a conversation starter, or ender.

More servo fun at:

http://arduinotronics.blogspot.com/2012/03/fun-with-servos.html





Thursday, November 19, 2015

Processing Now Optimized for the Pi

Thanks to the new Hardware I/O libraries, Processing is now optimized for the Raspberry Pi. This makes it much easier to use the Raspberry Pi I/O pins, and send data back and forth with a Arduino.


Sunday, November 15, 2015

WiFi Rechargeable Internet Clock

Many moons ago we built a Ethernet enabled clock that got it's time updates from a Internet NTP Server. We have updated that project for WiFi,and added a rechargeable battery that can be recharged with a USB cable.