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by Lucifer22334
Thu May 02, 2019 6:16 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

I am connecting RFID (MFRC522) with Raspberry PI GPIO. Connecting Speaker(3W 4 Ohm(2 pcs.) with amplifier(PAM8403)) to 3.5mm Jack. And Powering Arduino from USB of Raspberry PI and connecting SMD LED's Array(8-12 LED's) and IR sensor Array(6-8 pcs) to it. If power Supply 5V 3A is provided to Raspber...
by Lucifer22334
Mon Apr 29, 2019 5:18 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

Mains electricity can destroy your PI, burn your house or in the worst case kill you or your family. Please take drgeoff's advice and buy a properly designed PSU (5V1 4A is about right). If you must build one, first you must learn about mains wiring practices, then all the safety codes for your cou...
by Lucifer22334
Mon Apr 29, 2019 5:15 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

A bi-directional level shifter is needed between the TX-RX lines from RPi to Arduino or else... bye bye RPi And there should also be a ground connection between the Arduino or the RPI, or nothing will happen. Current needs a continuous uninterrupted loop. And yes, building your own AC to DC supply ...
by Lucifer22334
Mon Apr 29, 2019 5:13 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

Mains electricity can destroy your PI, burn your house or in the worst case kill you or your family. Please take drgeoff's advice and buy a properly designed PSU (5V1 4A is about right). If you must build one, first you must learn about mains wiring practices, then all the safety codes for your cou...
by Lucifer22334
Mon Apr 29, 2019 5:09 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

As achrn said: I have lots of power supplies that I didn't make. I wouldn't make a power supply now (though I have made linear supplies in the past) because switched mode units are now so plentiful and it makes much more sense just to buy one than build one. ......and this is the case with the 4A p...
by Lucifer22334
Mon Apr 29, 2019 5:04 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

From here https://shop.pimoroni.com/products/arduino-nano The Arduino Nano can be powered via the Mini-B USB connection, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source. Sir, J...
by Lucifer22334
Mon Apr 29, 2019 5:02 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

I am far from any kind of Arduino expert, noob if I'm honest. I just happen to have a couple of Uno's which are 5V logic and an MKR1000 WIFI thats 3.3v logic. The MKR has the following warning that tipped me off that its 3.3V logic. Which prompted my earlier post. Warning: Unlike most Arduino & Gen...
by Lucifer22334
Fri Apr 26, 2019 1:06 pm
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

Can't do Sir, I have to make one So that I can Learn and Grow.So to let me grow and Learn by providing your Schematic.
by Lucifer22334
Fri Apr 26, 2019 12:41 pm
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

You can use a single power supply for both of them, so long as the voltage is correct (you stated 5.1v) and the current sourcing capability of your power supply is greater than what both boards will be demanding. To me, a 3A supply will probably be OK for both boards, but just for the boards only. ...
by Lucifer22334
Fri Apr 26, 2019 10:35 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Re: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

A bi-directional level shifter is needed between the TX-RX lines from RPi to Arduino or else... bye bye RPi Sorry, I am not getting your Answer. My RPi and Arduino will be Working as Master-slave. I have Tried powering Arduino nano by USB connection to RPi but Voltage and Current Were not enough to...
by Lucifer22334
Fri Apr 26, 2019 10:15 am
Forum: General discussion
Topic: Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?
Replies: 29
Views: 810

Will Arduino nano and RPI get Damaged on Supplying 5V 3A DC?

Hi all, I am creating a Power Supply to provide RPi and Arduino nano Individual power but RPi and Arduino will be Connected to each other through RX and TX. I have read that max Power Supply to Arduino nano is 5.1V 1A and RPi is 5.1V and 2.5A. So I am Not Able to decide how will I provide them Indiv...
by Lucifer22334
Wed Apr 24, 2019 10:33 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

rpdom wrote:
Wed Apr 24, 2019 10:21 am
Lucifer22334 wrote:
Wed Apr 24, 2019 9:30 am
So can You Suggest me Circuit or refer me? I am going to use the Transformers used in Laptop charger or mobile charger.
Just buy one. 230V to 12V/5V or whatever power supplies are readily available for a small cost.
OK Boss
by Lucifer22334
Wed Apr 24, 2019 9:30 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Can Anyone Suggest or refer me the Circuit Diagram for 230V AC to 12V DC 5 or 10A power Supply?If Possible, Without Transformer will be good. A transformer of some kind is ESSENTIAL for SAFETY reasons. If you do not understand that you should not attempt to construct a PSU that is fed from AC mains...
by Lucifer22334
Wed Apr 24, 2019 6:40 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Are you going to link the Pi to the Arduino via USB? If yes, just be careful how you power the Arduino. You don't want to end up with two power sources fighting each other. Yes, I am Going to Connect it through USB. I have checked the output of pin when I connect to Raspberry Pi via USB in Arduino ...
by Lucifer22334
Mon Apr 22, 2019 7:16 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

If the Arduino is connected to the Pi via a USB cable it (the Arduino) will get its power that way. I personally wouldn't feed another power line to the Arduino with that setup. Raspberry Will be Connected to upto 3 Devices And Arduino will be Connected to IR Arrays which Consumes max 100mA (1pc) s...
by Lucifer22334
Thu Apr 18, 2019 1:50 pm
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

So I have to use a Power Supply Like 12v and 5A or Something and divide it for both Raspi and Arduino. Like in 5V - 2.5 A. and supply them Both. Do not try to use a 12v supply directly to a Pi. You will destroy it. yeah, I know. I am going to convert it into 5v-3A. using Voltage Regulator Circuit.
by Lucifer22334
Thu Apr 18, 2019 1:16 pm
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

I am Gonna use Raspi and Arduino nano as master(Raspi)-Slave(Arduino). it is the demand for my Product. So can't Supply External power. It's not clear what you mean by that. You can do what you want with a single external power supply - ___________________________ | | | .-----.----------. 5V | | | ...
by Lucifer22334
Thu Apr 18, 2019 11:18 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

scotty101 wrote:
Thu Apr 18, 2019 11:10 am
Then you might be out of luck. The Pi's internal power supplies and protection circuits will only provide so much current.
If you need more, you have to use an external supply.
yeah, That's why I was Trying to Learn how to build 5.1V or 5.3V - 3A circuit. I can Try if this work or not.
by Lucifer22334
Thu Apr 18, 2019 11:08 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Perhaps you can explain a bit about your project and why you need more current from the 5V and 3.3v supplies? You can certainly use a separate power supply to power any extra components that require more current. I've used a few motor/amplifier HATs/pHATs which take a wide range input voltage, conv...
by Lucifer22334
Thu Apr 18, 2019 10:56 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Perhaps you can explain a bit about your project and why you need more current from the 5V and 3.3v supplies? You can certainly use a separate power supply to power any extra components that require more current. I've used a few motor/amplifier HATs/pHATs which take a wide range input voltage, conv...
by Lucifer22334
Thu Apr 18, 2019 10:13 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

The recommended power supply for the Raspberry Pi 3B/3B+ is 5V at up to 2.5A, and the official Raspberry Pi Universal Power Supply is an affordable PSU that is a proven performer. You can use a power supply with a higher current rating, but the polyfuse in the Pi 3B/3B+ will limit current to 2.6A, ...
by Lucifer22334
Thu Apr 18, 2019 7:46 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

For an actual explanation, part of the reason you must order such a large amount is because it is only financially viable for them to sell you at least that many. They need to pay their staff to redesign this custom Pi for you and that costs a lot of money, which gets siphoned from the relatively m...
by Lucifer22334
Thu Apr 18, 2019 7:34 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Ok, I think this is good, and that's too much order need. Can' t they just Provide a custom rasp as Sample or Experiment. I just need Like 2-3 right now for Experiment with my product. I expect Element14 will be quite happy to send you only 3 custom designed and manufactured RPis provided you pay f...
by Lucifer22334
Thu Apr 18, 2019 6:58 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 38
Views: 1219

Re: Max Power Supply For Raspberry Pi 3 b +

Hi, Ok so, I can Provide 5V and 2.5 A max to Raspberry Pi, right?And I wanted to Know about How Much current I can Draw from 5V and 3.3V? And Can we Ask for a Custom designed Raspberry Pi? From the 5V I would say you can draw up to 1.2A. From the 3.3V I would say a maximum of 50 to 100mA. Yes, you ...

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