.:madworm:.'s photos with the keyword: digital

Half-Ohm mΩ DMM adapter

Half-Ohm mΩ DMM adapter

.:madworm:.
22 May 2013 122
It works very well. Made by Jaanus Kalde .
Half-Ohm mΩ DMM adapter

Half-Ohm mΩ DMM adapter

.:madworm:.
22 May 2013 135
It works very well. Made by Jaanus Kalde .
Please identify this

Please identify this

.:madworm:.
13 May 2012 104
What type / make / brand is this connector? It lives in my old Pentax S5z digital camera and I'd like to use it.
Pentax s5z LED-ring

Pentax s5z LED-ring

.:madworm:.
11 Apr 2013 212
More light for macro shots - or so I hope. The center hole (28mm) should be wide enough to make this ring just slip over the camera's extended objective and bring the light to where it is needed. I may have to do some grinding and smoothing of the inside to get a good fit and prevent scratching the objective - which is made of silver painted plastic. I was able to squeeze a little controller board inside the cutout area. No fancy constant current control, just a lot of resistors, a mosfet for PWM control and an ATtiny13 with up/down buttons. It's meant to run with 5V DC. Initially I had the idea to add a little boost converter to make it run with 3V (2x AA cells) or a LiPo, but that was scrapped.
Multiple reflections

Multiple reflections

.:madworm:.
04 May 2013 182
Multiple reflections

Multiple reflections

.:madworm:.
04 May 2013 175
Multiple reflections

Multiple reflections

.:madworm:.
04 May 2013 167
Two mirrors are needed

Two mirrors are needed

.:madworm:.
04 May 2013 162