Reddit mentions of JBtek Breadboard Power Supply Module 3.3V/5V for Arduino Board Solderless Breadboard

It's actually just a power supply made to fit on one of those protoboards and supply power to the rails.

https://www.amazon.com/dp/B010UJFVTU/ref=asc_df_B010UJFVTU5488754/?tag=hyprod-20&creative=395033&creativeASIN=B010UJFVTU&linkCode=df0&hvadid=194024095585&hvpos=1o1&hvnetw=g&hvrand=17101159569730068889&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9029787&hvtargid=pla-314833700048

I'd need to read the specs, but that adapter is really meant to offload the power for the breadboard components from the RPi, not power the RPi itself. Most I've encountered require 6.5v or higher input since they're dropping the input to 3.3v and 5v. Test your power levels with a meter.

For a RPi 3b, you want a quality 5V 2.5 A power supply. Make sure that adapter can provide that. The one I linked to doesn't deliver 1/3 of that. You can get by with less, but < 1A is pushing it.

3.3/5V power supply that goes right into the breadboard in lieu of an adjustable Eventek.

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Edit:

https://www.amazon.com/JBtek-Breadboard-Supply-Arduino-Solderless/dp/B010UJFVTU

Does your breadboard come with a power supply? If not, this one is good: https://www.amazon.com/dp/B010UJFVTU/ref=cm_sw_r_cp_apa_T-ihzbKYP93BC

It has both a 3.3v and 5v line.

The digital logic design circuits take 3.3-5v I think, and the lab has 5-12v power supply. It's been a while so excuse me if my numbers are off.

You can power a circuit using a battery and some know-how, if you've taken a circuits class or have worked with circuits before. This is the dangerous option because if you don't know what you're doing you could easily blow something out. Check the current your transistors take, use resistors and a multimeter and you can have functioning circuits in your dorm room.

You can also buy one of these. You're using TTL so 0-5V is the range you want, you just have to be careful of the current once again.

You could drop a lot more money and get one of these as well, and make your room really feel like a lab.

Rigging up your own supply is dangerous, be cautious.

> https://learn.adafruit.com/adafruit-huzzah-esp8266-breakout/overview

I have the exact board, and I also had issues powering it from a USB port. I'm currently using this power supply and have had 0 issues so far. I highly recommend a supply like this because it easily plugs into a solderless breadboard and can supply both 3.3v and 5v simultaneously. I combined it with this AC adapter. It's 9v, but the voltage regulators on the power supply will burn off the extra voltage as heat.

So now you can omit the voltage wire from the FTDI chip, but you still need a ground wire to go from the FTDI chip to the breadboard's ground.

Also, buy a multimeter if you don't already have one.

Hey Chrwei, the ACDC is the actual cord. The breadboard one is a module that i was connecting the cord to. It looks like the one in this link: https://www.amazon.com/JBtek-Breadboard-Supply-Arduino-Solderless/dp/B010UJFVTU

I have one of these https://www.amazon.com/JBtek-Breadboard-Supply-Arduino-Solderless/dp/B010UJFVTU

Should that work?

JBtek Breadboard Power Supply Module 3.3V/5V for Arduino Board Solderless Breadboard https://www.amazon.com/dp/B010UJFVTU/ref=cm_sw_r_cp_apa_i_fR4vDb9M2V911

You will get it way cheaper on Ali.

Looks like a MB102 power supply to me, like this one: https://www.amazon.com/JBtek-Breadboard-Supply-Arduino-Solderless/dp/B010UJFVTU/ref=sr_1_1?ie=UTF8&qid=1484871195&sr=8-1&keywords=Power+Supply+MB102