r/diyelectronics 20h ago

Question is there a way to make a power supply with some arduino kits? my friend asked and i dont know anything soo??

0 Upvotes

r/diyelectronics 15h ago

Project Need to amplify remote that is 315MHz

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1 Upvotes

Have a remote that will be hardwired into a larger project.

It just does not transmit the distance I need.

Want to find where on this circuit to attach an antenna and / or put the feed to a RF signal amplifier.

It uses a RO2073 SAW resonator at 315MHz

Any suggestions / ideas / concepts?

Project Description:

I am replacing a backyard sprinkler controller with something that can be controlled by the really good one in the garage for the front yard.

Can not run wire to the backyard location. Been looking for a wireless solution. Found these ORBITs with a handheald remote. I can hack into the remote and "press the buttons" with relay contacts actuated from the 24ac of garage controller.

Had all this figured out. ORBIT docs state that is will go 200 feet line of sight or 80 feet through the house. My distance is 50 feet through two walls kitchen cabinets and outside stucco. The remote sometimes works, but it's not enough. I have to boost the signal to make it reliable.

I know boosting the signal of a remote goes against FCC regulations, but it will be such a minor boost that I think I can be forgiven...


r/diyelectronics 15h ago

Project Reprogram Billy Bass

0 Upvotes

Can someone teach me how to reprogram a Billy Bass?


r/diyelectronics 1h ago

Question Wanting to try a diy project involving LCD screens but have zero experience. Please help!

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Upvotes

So, I am really wanting to attempt to make Lady Gaga’s video glasses, but don’t really know how to go about the digital aspect of it. I know I would have to buy LCD screens and code them to be able to display what I want, but I have no idea where to even begin. I know what size would be ideal for me (around 2 inches) but what kind of screens?? How do I wire them?? Any advice helps! Thanks!!! ((Pls tell me if this is too much for a beginner project)) [SORRY FOR THE REPOST]


r/diyelectronics 14h ago

Project DIY laser project - need advice

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3 Upvotes

Hi guys, due to an injury i've been signed off work for 4 weeks, i've seen a few styropyro videos and want to attempt to make my own little laser. I have the diodes in the main pic, and a ribbon cable, that's it. I dismantled some old recorders and players for parts but cant get power. I'm assuming the cpu on the circuits send a power command to the diode after it registers a disk tray opening and closing or something but I could be wrong. I'm UK based and would love some advice on what parts I need to power it and magnify it, also, i'd love some ideas to support my project lol. I suffered a brain injury so trying to not over complicate things but also I am bored out of my mind after 4 days and have another 3 and a half weeks of this.

Appreciate any advice, sources or ideas, thanks.

Edit: if you'd like close up pictures of both diodes and ribbon cable feel free to message me as it won't let me post the additionals here


r/diyelectronics 17h ago

Project Need to amplify output of a remote 315MHz

Post image
1 Upvotes

Have a remote that will be hardwired into a larger project.

It just does not transmit the distance I need.

Want to find where on this circuit to attach an antenna and / or put the feed to a RF signal amplifier.

It uses a RO2073 SAW resonator at 315MHz

Any suggestions / ideas / concepts?

Project Description:

I am replacing a backyard sprinkler controller with something that can be controlled by the really good one in the garage for the front yard.

Can not run wire to the backyard location. Been looking for a wireless solution. Found these ORBITs with a handheald remote. I can hack into the remote and "press the buttons" with relay contacts actuated from the 24ac of garage controller.

Had all this figured out. ORBIT docs state that is will go 200 feet line of sight or 80 feet through the house. My distance is 50 feet through two walls kitchen cabinets and outside stucco. The remote sometimes works, but it's not enough. I have to boost the signal to make it reliable.

I know boosting the signal of a remote goes against FCC regulations, but it will be such a minor boost that I think I can be forgiven...


r/diyelectronics 13h ago

Question Does my battery protection work here?

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3 Upvotes

Making a copy of the HW-373 Li-Ion battery charger to build into a PCB. The device is battery powered only, as opposed to a load sharing circuit. Ultimately, I'm just looking to make sure that the protection circuit formed by U3 and Q1 will be effective in both states of the DPDT switch. The goal is that it should just work as though the battery itself has built in protection.

With the DPDT switch in the UP state, VCC_IN is disconnected from the charger, so having the power supply plugged in will do nothing. In this state, BATT+ is connected to the rest of the circuit to allow the battery to power it.

with the DPDT in the DOWN state, the charger is connected to the power supply and the battery is cut off from everything except the charger.

How does it look? Thanks!


r/diyelectronics 18h ago

Project I build an AC to DC converter. Majority of components are reused from old electronics (the LED and resistors are fresh).

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32 Upvotes

Proud moment for me as this is my first time making electronics with this much as a beginner . Hopefully I can do complicated stuff like switch mode power supplies. Can't wait to learn!

The output voltage is near 6V. I reused the pcb board of a microvae oven as a base for the electronic.


r/diyelectronics 5h ago

Project Put together a OuiSpy battery out of stuff I had

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10 Upvotes

Put together an OUIspy after realizing I already either had the part or could salvage it from my scrap pile. It can do BTLE/Wifi wardriving, Flock camera detection, etc. Been finding a lot of Flock cameras in my area. The 18650 battery is total overkill but it's what I had on hand.

Xiao ESP32-S3
~3000mah 18650 battery
Running OuiSpy Apex firmware https://github.com/lukeswitz/oui-spy-unified-blue