Excessive battery draw when pressing a key

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thomas_s
Posts: 1
Joined: Wed Jan 16, 2019 8:08 am
Location: Trondheim, Norway

Excessive battery draw when pressing a key

Post by thomas_s »

Today I discovered that the current draw on my DM42 jumps to 4.7mA when a key (any key) is pressed. That seems excessive to me. Measured with a 3.00V laboratory power supply.
I know buttons are not pressed for long periods of time. But then again, there are a lot of key presses! That's kinda what you do with a calculator.

So is this a bug with the keyboard matrix scanning?
Or has it always been like this?
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