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I have added a LDR to the clock. This wasn't included in the kit but as an optional upgrade.
It senses the ambient light and adjust the brightness of the clock. In dark when I go to sleep I have set it at minimum of 0.5 and during daylight at 8.0. It works pretty well.
The LDR spec are :
Put a 10K resistor on R4 next to the LDR.
It senses the ambient light and adjust the brightness of the clock. In dark when I go to sleep I have set it at minimum of 0.5 and during daylight at 8.0. It works pretty well.
The LDR spec are :
LDR, SERIES VT901
Power Rating: 80mW
Dark Resistance: 1Mohm
Resistance @ Lux: 40.5kohm
Operating Temperature Range: -40°C to +75°C
Resistor Element Material: Ceramic
Voltage Rating: 100V
No. of Pins: 2
Put a 10K resistor on R4 next to the LDR.
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