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Plons I did post the schematic but apparently Banggood doesn't want me to share that information with you :(

Plons 12/11/2015
The output of this board can oscillate when the slot in the wheel is half open - half closed. The designer added a 100nF capacitor across the photo transistor but that makes the situation worse. To fix this problem, the capacitor closest to the edge of the board should be removed and a 33k resistor must be added between output (pin7) and the non-inverting input (pin5). I will post the schematic in
Modulo Accoppiatore di Prova del Contatore di Interruttore Sensore Misuratore di Velocità a 5 Pezzi Geekcreit per Arduino - prodotti compatibili con schede Arduino ufficiali
Modulo Accoppiatore di Prova del Contatore di Interruttore Sensore Misuratore di Velocità a 5 Pezzi Geekcreit per Arduino - prodotti compatibili con schede Arduino ufficiali
US$8.61 US$11.99
7
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Plons I find the accesories very handy and pretty good: they're worth their money. I fully agree with Florian: the cables look pretty good but are of inferior qualty: 0.8 Ohm per lead !I posted my own review but that seems to got lost. Anyway, I cut the M4 threaded nuts from the cable and replaced the wire with silicone AWG14 wire, also available here at Banggood. 0.1 Ohm. Look, now we're talking !

Florian 29/08/2014
The set looks nice, but the cable is very thin and has high resistance. It might be okay for voltage measurement but don't use this for current measuring it's not suitable for it. There are some different tips which can be screwed on the cables. I don't recommend this item: http://www.banggood.com/Wholesale-1-Set-Multifunction-Digital-Multimeter-Probe-Test-Leads-Cable-Alligator-Clip-p-40308.html?p
DANIU 1 Set completo di multimetro digitale multifunzione Sonda per prove Cavo
DANIU 1 Set completo di multimetro digitale multifunzione Sonda per prove Cavo
US$11.54 US$11.99
6
Commento (1)

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