The Gnd / Voltage / Signal (GVS) standard is very popular in the Arduino world, and consists of a 3 pin header, where Gnd and Signal are on the ends, and Voltage is the center pin. This helps by making
We use a software debounce in many of our sketches. What’s a debounce? A mechanical switch does not make a clean on/off transition, and if you are sampling fast enough, one switch depression could look like several to the Arduino.
We received another cool gadget, the TCRT5000 IR emitter/detector pair. The TCRT5000 is a reflective sensor which includes an infrared emitter and phototransistor in a leaded package which blocks visible light. The “blue” LED is the IR emitter. These units
I needed a low voltage disconnect to disconnect my loads from the battery when the battery voltage drops below a predetermined level. This is a hybrid relay, as I put a MOSFET in parallel with the relay contacts. The Arduino
We got the ah and wh functions working. All that’s left is to integrate the 4 line white on blue lcd. All code and schematics, photo’s etc., are listed at http://groups.yahoo.com/group/arduinohome/files/volt%20amp%20watt%20hour%20meter/ Recommended Parts: Become the Maker you were born
Now that we have the current monitor working, the next step is to build the voltage monitor circuit. I built a voltage divider that will break down the highest voltage my battery can possibly see, into a 0-5v input for