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Power Supply requirements - Precision Clock Mk II 1/2
tca001-1 Posted: 9 Jan 2022, 01:01 PM

Posts: 1
Joined: 9-January 22
I was reading the instructions and specifications of the Precision Clock Mk II 1/2, and only could find the power supply requirements of 5 VDC. What is the current drain? Would a Raspberry Pi4 power supply be sufficient (removing the present connector and of course replacing this with an appropriate plug that will fit the barrel jack).

mit Posted: 9 Jan 2022, 03:01 PM
yeah whatever

Posts: 382
Joined: 4-May 16
The current draw is a function of the display brightness, which adjusts automatically but has a maximum brightness setting.

At highest brightness, it draws about 500mA. At the lowest brightness, less than 10mA.

A Raspberry Pi4 power supply is rated for something like 3000mA, so will easily power the clock.


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