Very simple circuit for initiation. As described; changing C1 and/or R2 youcan change the pitch tone of it.

Very simple circuit for initiation. As described; changing C1 and/or R2 youcan change the pitch tone of it.

Very simple circuit for initiation. As described; changing C1 and/or R2 youcan change the pitch tone of it.

Its going to be a good project! thank you

Its going to be a good project! thank you

Its going to be a good project! thank you

Item/s are as described, exactly what I purchased, very well packaged also very quick shipping and delivery, recommend the seller A+++++

Item/s are as described, exactly what I purchased, very well packaged also very quick shipping and delivery, recommend the seller A+++++

Item/s are as described, exactly what I purchased, very well packaged also very quick shipping and delivery, recommend the seller A+++++

Funziona molto bene, la descrizione dell'oggetto è chiara e precisa. Il montaggio divertente e utile come esperienza. Sono soddisfatto.

Funziona molto bene, la descrizione dell'oggetto è chiara e precisa. Il montaggio divertente e utile come esperienza. Sono soddisfatto.

Funziona molto bene, la descrizione dell'oggetto è chiara e precisa. Il montaggio divertente e utile come esperienza. Sono soddisfatto.

I bought this product. The printed circuit board is of very poor quality. Copper lines cannot withstand a 30W soldering iron. The lines are leaving the epoxy. The copper lines are very thin. The islands to be soldered are very small. I'm working on the circuit. When the button is pressed, the LEG lights up. I couldn't get any sound from the circuit.

I bought this product. The printed circuit board is of very poor quality. Copper lines cannot withstand a 30W soldering iron. The lines are leaving the epoxy. The copper lines are very thin. The islands to be soldered are very small. I'm working on the circuit. When the button is pressed, the LEG lights up. I couldn't get any sound from the circuit.

I bought this product. The printed circuit board is of very poor quality. Copper lines cannot withstand a 30W soldering iron. The lines are leaving the epoxy. The copper lines are very thin. The islands to be soldered are very small. I'm working on the circuit. When the button is pressed, the LEG lights up. I couldn't get any sound from the circuit.

Hello, fast delivery in 15 days more or less at my address, well packed and no problems. Very well made printed circuit board with the mounting indications on the board itself. Note that you must have some electronic knowledge of recognizing and soldering the components. I'll set up the circuit later. Thank you Banggood

Olá, entrega rápida em 15 dias mais ou menos na minha morada, bem embalado e sem problemas. Placa de circuito impresso muito bem feita com as indicações de montagem na própria placa. Atenção que deve ter alguns conhecimentos eletrónicos de reconhecer e soldar os componentes. Irei montar o circuito mais tarde. Obrigado Banggood

Hello, fast delivery in 15 days more or less at my address, well packed and no problems. Very well made printed circuit board with the mounting indications on the board itself. Note that you must have some electronic knowledge of recognizing and soldering the components. I'll set up the circuit later. Thank you Banggood

Soldering exercise. It is not a special treasure.

半田付けの練習。特別重宝とはならない。

Soldering exercise. It is not a special treasure.

good delivery

good delivery

good delivery

Good value for money.

Buena relación calidad/precio.

Good value for money.