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Your cart is empty. Specification:
1. Onboard NE555 chip
2. Single-channel signal output, the output duty cycle is about 50% square wave
3. On-board adjustable resistance, adjusting the resistance value can control the output frequency
4. Onboard power indicator
5. Working voltage: 5~12V
6. The output frequency range is 5~2KHZ (changing the capacitor C1 can change the output frequency)
7. Dimensions: 25mmx13mmx12mm/0.98x0.51x0.47in (L x W x H)
Applicable occasions:
Single-chip learning, electronic competition, product development, taxi meter, graduation design. .
Package includes:
5 x NE555 Pulse Generator Module
1 x 15pin Female to Male Dupont Cable
Kindle Customer
2025-06-05 18:59:05
Hey I'm trying to power this with a 9-volt battery which should work according to a little information I can find. But it gets very hot and the frequency is completely unstable. Is there something I am missing? Is there too much amperage coming out of of 9 volt battery? I've seen lots of any 555 homebrewed frequency circuits that just used a straight 9 volt battery. Not enough information on your site to get this to work right.
Patrick
2025-05-25 19:23:33
No LED. Schematic on website suggested it has more features than physically present on the board. The freqency range did not adjust below a few kilohertz, as provided. It was more like 2-5khz and not 5-2khz, as stated.
Roberto Miguel Soler Fernández
2025-01-02 16:23:51
Simplemente funciona. Los potenciómetros multivuelta hacen que sea muy fácil afinar la frecuencia de salida.
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