whirlyworld
adventures in whirlyworld
Monday, July 8, 2013
Changing resistors
The dome buttons are lit by a LED set up for 12V DC. Replaced resistors in each LED with a 100 ohm resistor so now can use 5 VDC (30mA per pin) - would be better if it were 20mA but had 100 ohm resistors and arduino can source up to 40 mA per output pin.
Saturday, July 6, 2013
Whack A Mole Dome
Inspired by Sparkfun and their Whack A Dome I started a smaller version with only 9 buttons. Using their code as a start, here goes
Start of the prototype. Counter display is from Adafruit and will be controlled by Arduino Leonardo
Cutting out board for buttons
Tuesday, June 4, 2013
CTD Mark 1
Finally Mark 1 version of the CTD is finished - after lots of careful planning to keep the PCBs on the datalogger shield, I needed to add a voltage divider so ended up with adding another board, so it looks like a dog's breakfast.
First deployment using an axe as a weight and a paddleboard to get onto the lake
Underside of CTD showing arduino and ports |
Top of CTD with extra board and also the pressure sensor is visible |
First data from CTD
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