Thread: Repaired Harbor Freight digital caliper
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John S[_4_] John S[_4_] is offline
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Default Repaired Harbor Freight digital caliper
On 11/23/2011 2:05 PM, Bob Engelhardt wrote:
wrote:
...

D1
.--||--+-----+---- (+) to caliper
+ | | |
.------. + | |
| | --- ---
| ---- | --- \ / ~~
| | C1| ---
| ---- | | | LED (red)
| | | |
'------' | |
- | PV | |
'--------+-----+--- (-) to caliper

...

Doncha' need a current limiter on the LED?

Bob

Not if the PV cell's rated SC current is less than the max LED current
rating.
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