Some resources to help you getting started with STM32 programming.
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It's a new digital LED countdown display 12v delay module module. It can be widely used with various control switch places.
It can set the delay time,can press set buttons.After setting up, power-up setting value is previous setting delay time as we set last time (power-down memory function).
It's precision delay, error 0.01% per second, a delay of 0-999 seconds , LED changes per seconds.
LED digital display, normally open trigger delay 12V relay module, triggered by an external signal.
Modules are high level trigger, counting time 0-999 seconds.
The wide range of products can be used in many fields.
It work in a low-power mode, press the left button to turn off the digital display or begin to show.
Working voltage: DC 12V
Standby current: 12ma
working current: 50ma
Load: AC 250V 10A(max) or DC 30V 10A(max)
Size: 6.5 x 3.5cm
1 x DC 12V digital LED delay module