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5V 650nM 5mW Cross Laser Módulo de diodo
US$2.99 US$3.99

Q: There is a silver wire and a copper wire. Which is positive and which is ground?

perguntado por PeterLiwyj sobre 2020-01-15 03:30:07

Peter No the fastest

2020-02-09 11:54:25 Útil (0)
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Peter 05/05/2019
I build a lot of strange things. These boards come in very handy. They take solder very well and come in standard spacing that lines up with solderless breadboards. Makes it very easy to transfer your temporary breadboard projects to more permanent locations.
Geekcreit® 40pcs FR-4 PCB de Protótipo de Dupla Face com Passo de 2,54mm
US$9.99 US$15.99
1
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10pcs 3mm Chaves de Mercúrio PZ-101 Sensor de Inclinação 20V 0.5A Ângulo de Trabalho 10 Graus Interruptor de Fim de Curso
US$5.95 US$8.10

Q: Why use a picture of the broken one where the mercury has leaked out?

perguntado por PeterLiwyj sobre 2019-11-29 08:44:12

deiity Maybe you can use the "contact us " to contact the banggood customer service team.

2019-12-02 12:05:54 Útil (0)
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Peter 05/05/2019
Well built. You will need a battery holder too. Bat - goes to A- Bat+ goes to A+ Use heavy short wire. These connections go to the outer heavy cone shaped battery connections on the holder. Also connect the thinner sensor wire shown here in red and black. Pay attention to the polarity of the plug. My wires were reversed so I had to take them out and switch them in the plug. I could have just wired it without caring about the color but not everyone speaks English and will only look at the pictures. Sensor wire red positive goes to V+ on the battery holder. Sensor wire negative black goes to V- on the battery holder. These connections go to the small spring loaded pins in the middle of the battery connections. THE INNER AND OUTER CONNECTIONS OF THE BATTERY CONTACTS MUST ALL BE TOUCHING THE BATTERY TO MEASURE EVERYTHING!!! The power from the micro USB is 5V 500mah. Here is a link to instructions on how to use this tester. https://syonyk.blogspot.com/2016/01/zb206-battery-tester.html
ZB206 V1.3 Bateria Testador de capacidade Teste de resistência interna 18650 Lithium Bateria Testador
US$14.99 US$17.99
0
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Peter 05/05/2019
Very nice! This is the second one I have ordered. I mounted this one in a small box to make a portable variable power supply. Since the control board comes off I can store it in the box with all the wires. I soldered everything instead of using the screw connectors but those work good too. Great value. Very happy!
Módulo redutor digital B3603 CNC DC-DC de tensão constante e corrente
US$15.99 US$19.99
0
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Peter 05/05/2019
Perfect replacement for my little radio with a broken antenna. Well built and works smooth. Slightly longer but now it has better reception!
Substituição 60 cm seis prata de seções antena de antena telescópica de rádio-TV kl
US$8.99 US$10.99
0
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Peter 05/05/2019
Very nice! Quite powerful too. I am running 4 speakers in a small ammo can with this. running two 1.5 inch 4 OHM 3 Watt and two 2 inch 10 watt 8 Ohm speakers with 4 inch PVC pipe added to each speaker to make the sound better. Any old laptop power supply up to 24 volts will run this, mine is 19 volts. If you use the plug make sure the positive is in the middle of the connector. It gets quite hot and I may have to add a cooling fan.
2pcs 1.5inch 4ohm 3w gama completa alto-falante de áudio alto-falante estéreo
US$12.99 US$15.99
0
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Peter 05/05/2019
Great quality. gold plating and very nice plastic. Took solder quite well. I made a small bench top variable power supply with mine.
Conector vermelho preto para amplificador, correio de ligação, conector de alto-falante de banana
US$6.99 US$8.99
1
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Peter 05/05/2019
Works very well. Small size but lasts about ten hours on continuous mode which is perfect. Got it as a gift for my mom and she really liked it!
VH 420ml Usb Desktop Air umidificador purificador de ar Essential Óleo Difusor Touch Control Smart Anti-dry Household
US$27.99 US$31.99
0
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Peter 05/05/2019
This is without a doubt the best upgrade you can make for your 3D printer to lower the amount of noise it makes! I had to reverse my motor plugs because for some reason it swapped the motor direction when I put them in. And make sure you do not put them in backwards! compared to the old drivers these look backwards but they are not. Check your wiring carefully before putting them in. I only swapped out X and Y but the difference in noise level is amazing! Now I need quieter fans LOL! Well worth the upgrade. My printer is quiet as a mouse now!
Kit Geeetech® de 2 drivers de motor de passo TMC2208 ultra silenciosos + dissipador de calor + chave de fenda para impressora 3D
US$15.48 US$25.99
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Peter 05/05/2019
Very nice! Quite powerful too. I am running 4 speakers in a small ammo can with this. running two 1.5 inch 4 OHM 3 Watt and two 2 inch 10 watt 8 Ohm speakers with 4 inch PVC pipe added to each speaker to make the sound better. Any old laptop power supply up to 24 volts will run this, mine is 19 volts. If you use the plug make sure the positive is in the middle of the connector. It gets quite hot and I may have to add a cooling fan.
1 Pcs 2 Polegada 10 W 8 ohm Dupla Freqüência Completa Magnética Pequeno Altifalante Multimídia Altifalante
US$7.15 US$10.99
0
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Peter 05/05/2019
Very nice! Quite powerful too. I am running 4 speakers in a small ammo can with this. running two 1.5 inch 4 OHM 3 Watt and two 2 inch 10 watt 8 Ohm speakers with 4 inch PVC pipe added to each speaker to make the sound better. Any old laptop power supply up to 24 volts will run this, mine is 19 volts. If you use the plug make sure the positive is in the middle of the connector. It gets quite hot and I may have to add a cooling fan.
TDA7492P Bluetooth Amplificador de Receptor de Placa de Áudio de 25 WX25 W Alto-falantes Modificado Música Mini Amplificadores DIY Dual Channel
US$9.58 US$10.79
0
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Peter 05/05/2019
Very handy. I made a small bench top power supply with some of mine. The connection on the back goes to the middle inner pin which is normally positive. The other two go to the outer contact which is normally negative.
Excellway® JS01 10pçs 5.5 x 2.1mm Fonte de Alimentação DC Tomada Jack Fêmea
US$3.99 US$9.99
0
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BG454018321 03/08/2018
Pretty good, worth the $ I spent. Not so expensive I have to worry about it. Perfect for throwing in the bottom of the tackle box.
Sakura 30 * 60 dobra mini binóculo telescópio azul filme
US$9.99 US$13.63
0
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BG454018321 11/03/2018
Arrived well packed and was undamaged. I even threw it on a granite plate and tested it for any sort of bow or bend. Perfectly flat!
Perfil de extrusão de alumínio de ranhura em T, modelo 2060, comprimento de 350mm/500mm para CNC
US$19.99 US$23.99
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