Hacked Gadgets Forum

July 8, 2010

Meter Clock

at 1:39 pm. Filed under Complex Hacks, Cool Gadgets, DIY Hacks, Electronic Hacks

meter_clock


Len Bayles has designed a great looking Meter Clock which is based on the Atmel AT89C2051 microcontroller. The design is similar to the Multimeter Clock that I created.  Len provides the code and schematic on his site so you can make your own.

“The software in the microcontroller handles the count for the time. It “talks” to a 4 channel Digital to Analog converter to derive the voltage to position the needles on the three meters. The outputs of the D2A converters are buffered with a quad amp. Otherwise the current draw of the 1ma meters would exceed the D2A converter.”


meter_clock_circuit_board


 

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3 Responses to “Meter Clock”

  1. James Says:

    Great project.
    I have recently aquired 3x 200uA FSD meters (and I only paid GP£1 each for them!). I would imagine that the circuit would be farly easy to adapt, just by changing the value of the DAC output resistors.
    Why didn’t I buy more meters?

  2. Clock Hack – How to Make a DIY Meter Clock! Says:

    [...] via hackedgadgets [...]

  3. A2ZeK Says:

    HMMM!!!!!!!!! Sound like good. i wanna try it myself!!!

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