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- This NE555 square wave pulse generator module can be used to produce square wave signals for experimental development, or in applications such as driving stepper motors, and as an adjustable pulse for microcontroller (MCU) applications.
- Only 31mm x 22mm (1.2" x 0.9"), the board features an NE555 timer chip configured in four frequency ranges, 1Hz to 50Hz, 50Hz to 1kHz, 1kHz to 10kHz and 10kHz to 200kHz all adjustable with onboard jumpers and two trim-pots to adjust the output frequency and the duty cycle.
- Input voltage to the module (VCC) is variable from 5V to 15V DC and draws approximately 15mA at 5v (35mA at 12v) with an output amplitude of 4.2V peak-to-peak to 11.4V peak-to-peak based on the supply voltage.
- An indicator LED illuminates on a low-level output and flashes relative to the output frequency. At higher frequencies, the LED will appear to be on solid and without a visible flash.
Reviews
Reviewed in the United States on April 27, 2024
One star deducted because the listing does not provide adequate information about the product. However, the product is good and information is not that difficult to find, since numerous sellers offer this same circuit. I have attached images of the schematic and of the board with labels for the potentiometer functions and the frequency range set by each jumper position.
Ken J.
Reviewed in the United States on April 18, 2024
The media could not be loaded.
fernando cruz
Reviewed in the United States on August 27, 2023
Great
Eyal P
Reviewed in the United States on January 13, 2023
i wish it would have the schematic and pins functionality
JohnG
Reviewed in the United States on October 4, 2022
No schematic or any explanation of jumpers or controls.Not even any information on where to connect the power or what voltage to use.Not even worth sending back. Threw them in the trash.
David Murray
Reviewed in the United States on September 3, 2020
i dont get why you cant give a link to this schematic on google or label the 2 pots or say which pot is duty cycle. Dont expect decent rating when you are this inept
flosmoney
Reviewed in the United States on December 22, 2019
No instructions again. You just get the part and have to figure out how to adjust it. Too much one way and it locks up and burned out in 5 seconds
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