NE555 Pulse Generator Pulse Starter Duty Cycle and Frequency Adjustable Module DIY Kit Oscillator Square Wave Signal Generator
2.16$
2.06$
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Condition: 100% new
Color: As Show in the Picture
Main Chip: NE555
Input current: >=100MA
Input Voltage: 5V-15VDC (when power supply is 5V, the output current can be 15MA around, when 12V power supply, the output current can 35MA around)
Output amplitude: 4.2V V-PP to 11.4V V-PP (Different input voltage, the output amplitude will be different)
Maximum output current: >=15MA (5V power supply, V-PP greater than 50%), >=35MA (12V power supply, V-PP greater than 50%)
The output frequency range is selectable: LF file: 1Hz ~ 50Hz,IF file: 50Hz ~ 1kHz, High-frequency file: 1KHz ~ 10kHz, HF file: 10kHz ~ 200kHz
The output frequency is adjustable:
1) Period T = 0.7 (RA +2 RB) C
2) RA, RB is 0-10K adjustable
3) Low profile when C = 0.001UF
4) IF stalls C = 0.1UF
5) High-frequency file C = 1UF
6) HF stalls C = 100UF (so buyers can calculate the frequency of the waveform.)
Suitable: for experimental development, experimental development and so on.
Customer Reviews
127 ratings
fast delivery (13)
works as described (13)
good quality modules (8)
reliable seller (6)
good value for price (5)
excellent (5)
Customer photos (18)
d***r
May 25, 2026
No instructions included at all. Online/PDF "instructions" had no explanation for what the jumper was for. Unit as delivered did not work.
S***r
April 26, 2026
This is a nice pulse generator. It was received on time and in good condition. I like the quality. The output signal is similar to other NE555 chip boards. DS, Billings, Mt, USA
Buyer from United States
April 8, 2026
I was kind of disappointed in this item as I was imagining a device already wired for power and sound that I could just adjust the frequency, put in some earbuds for a select timeframe and start experiencing the healing powers of radio frequency technology so that I could promote that method of healing and reversing cancerous tissues and their effect on the human body and how we as a people could get away from the financial monster of Big Pharma and more so towards natural healing.
r***s
February 3, 2026
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A***i
January 2, 2026
The lights are shining, there's no problem. I don't know how to connect it to the Arduino scenario, but maybe I'll succeed. If I made a mistake in the review, sorry.
Translated by AliExpress ·
Buyer from Greece
October 7, 2026
Poor assembly quality. Several parts are misaligned.
Translated by AliExpress ·
NE555 Pulse Generator Pulse Starter Duty Cycle and Frequency Adjustable Module DIY Kit Oscillator Square Wave Signal Generator
2.16$
2.06$
Quantity:
1
Availability:
