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campos6
modified 7 years ago

Water Tank Control with Buzzer and Set_Reset - Controle de Nível Caixa Dágua

4
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378
05:56:57
The push button resets the buzzer (lamp). When the last level turns off the relay rearms the buzzer. *I'm using in the upper logic input a normal closed push button with an resistor, this is cause the program can't understand "no" voltage as 0. So i have to simulate an "short circuit" just to "wire". In real life this should be replaced with an normal open push button in serial, this way: vcc to normal open push button to upper logic input. The last input also have an resistor grounded, no need replace, just disregard that. See at the right. O push button reseta o buzzer. Quando o último nível desliga o relé rearma o buzzer. *Estou usando na entrada de cima das portas lógicas um push button com um resistor, fiz isso porque o programa não entende "sem" voltagem como ZERO. Então eu tive que simular um curto circuito apenas pra funcionamento. Na vida real isso deve ser substituído por um push button normal aberto, desse jeito: liga o vcc no push button normal aberto que já liga na porta. A última entrada também tem um resistor aterrado, não precisa substituir, só desconsidera isso. Veja a direta.
published 7 years ago
mb335
7 years ago
How do you have current flowing in two different directions and slamming into each other right above that red LED?
campos6
7 years ago
Think this is caused by the indutance of the relay.
sshsslfun
7 years ago
That's great and all but you made a grave mistake! You forgot a diode or a cap for the relay, so there's a -60V spike when it turns off.
sshsslfun
7 years ago
The 2 way current is a glitch in EC, just move the ground symbol and it fixes itself.
sshsslfun
7 years ago
5730078674911232 Use that circuit, a simple capacitor discharges the coil nicely.
campos6
7 years ago
Thanks everyone for the tips!!!
campos6
7 years ago
Updated thanks to sshsslfun
kkambaiz
5 years ago
Wrong

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