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by alphanumeric
Mon Apr 22, 2019 8:44 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 31
Views: 620

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.
by alphanumeric
Sat Apr 20, 2019 8:20 am
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 31
Views: 620

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.
by alphanumeric
Thu Apr 18, 2019 3:39 pm
Forum: General discussion
Topic: Max Power Supply For Raspberry Pi 3 b +
Replies: 31
Views: 620

Re: Max Power Supply For Raspberry Pi 3 b +

Somebody correct me if I'm wrong, but if you supply your +5V to GPIO Pin 2 or 4, you bypass the poly fuse, and its current limit. I'm not saying its a good idea to do that, but it is an option. I've done it on Pi Zero's that don't have a poly fuse anyway, and a couple of A+'s because it made feeding...
by alphanumeric
Mon Apr 15, 2019 9:47 pm
Forum: Troubleshooting
Topic: pi model A + - frequent unexpected shutdowns
Replies: 6
Views: 144

Re: pi model A + - frequent unexpected shutdowns

Ok, fair enough, its likely not a power supply issue then. I have several of the official power supplies here and they have the Pi foundation logo on them. The sticker says TT Electronics 5.1V 2.5A etc. I'm not sure what your issue is to be honest. Micro SD card maybe, is it a name brand card bought...
by alphanumeric
Mon Apr 15, 2019 1:10 pm
Forum: Troubleshooting
Topic: pi model A + - frequent unexpected shutdowns
Replies: 6
Views: 144

Re: pi model A + - frequent unexpected shutdowns

There is no Official Raspberry Pi Charger Its a Power Supply not a charger, there is a difference. It will sound like nit picking but its seems many people try to power their Pi with a phone charger and then wonder why they have issues. Ok my indoor A+ weather clock is likely seeing similar temps an...
by alphanumeric
Sun Apr 14, 2019 4:09 pm
Forum: Troubleshooting
Topic: RTC DS3231 to Raspberry v2011.12
Replies: 3
Views: 104

Re: RTC DS3231 to Raspberry v2011.12

I have a couple of DS3231's running on Pi A+'s. (A+'s not 3A+'s) I followed this tutorial. https://learn.adafruit.com/adding-a-real-time-clock-to-raspberry-pi As far as I know a UU displayed in i2c detect is normal for the DS3231's address. Once you have the Kernel driver running, i2cdetect will ski...
by alphanumeric
Sun Apr 14, 2019 4:04 pm
Forum: Troubleshooting
Topic: pi model A + - frequent unexpected shutdowns
Replies: 6
Views: 144

Re: pi model A + - frequent unexpected shutdowns

What temperature variations is it exposed to, ambient temps? I ask because I have an A+ running as a weather clock in the house that pretty well runs 24/7 with no issues. A power bump or power failure is about all that stops it working correctly. My python script runs 24/7 showing weather info on a ...
by alphanumeric
Sun Apr 14, 2019 3:49 pm
Forum: Beginners
Topic: Raspberry Pi 3 model A+ USB Problems and more
Replies: 5
Views: 171

Re: Raspberry Pi 3 model A+ USB Problems and more

I've used this , https://shop.pimoroni.com/products/usb-multi-function-lan-adaptor with my A+ and 3A+'s with no issues. Logitech K400 keyboard that has a built in trackpad. Ethernet jack was used at the same time on the 3A+, and a USB WIFI dongle with my older A+. Official Pi foundation power supply.
by alphanumeric
Fri Apr 12, 2019 7:45 pm
Forum: Troubleshooting
Topic: Raspberry Pi Zero w not working
Replies: 6
Views: 149

Re: Raspberry Pi Zero w not working

He used a stacking header, female to male. I don't see that as an option? Still a good alternative if you don't fancy soldering your header in place though.
by alphanumeric
Fri Apr 12, 2019 7:41 pm
Forum: General discussion
Topic: Cluster Pi via gpio pins
Replies: 34
Views: 812

Re: Cluster Pi via giro pins

Why limit it to just 1 Zero? :lol: :P https://shop.pimoroni.com/products/cluster-hat Buy 4 X ZeroWH and remove the headers :D I never ever buy the With Header version. Retired electronic technician. Soldering on my header of choice is no big deal. If I was to actually buy that hat I would be solder...
by alphanumeric
Fri Apr 12, 2019 7:37 pm
Forum: Troubleshooting
Topic: Raspberry Pi Zero w not working
Replies: 6
Views: 149

Re: Raspberry Pi Zero w not working

The Pi Zero is most likely a multi layer board. All you soldering and unsoldering (heat) has likely separated something and broken a connection at one of the GPIO pads. I'd take it as a lesson learned and move on. Buy a new Pi Zero and try again, just make sure you solder in the header you need.
by alphanumeric
Fri Apr 12, 2019 7:14 pm
Forum: General discussion
Topic: Cluster Pi via gpio pins
Replies: 34
Views: 812

Re: Cluster Pi via giro pins

by alphanumeric
Fri Apr 12, 2019 6:50 pm
Forum: HATs and other add-ons
Topic: Official Raspberry Pi keyboard
Replies: 36
Views: 8029

Re: Official Raspberry Pi keyboard

Thats great news thanks for the link. :D
by alphanumeric
Fri Apr 12, 2019 4:08 pm
Forum: HATs and other add-ons
Topic: Official Raspberry Pi keyboard
Replies: 36
Views: 8029

Re: Official Raspberry Pi keyboard

Will there be an English US version?
by alphanumeric
Thu Apr 11, 2019 8:20 am
Forum: Troubleshooting
Topic: Sensehat unreliability, anyone else?
Replies: 11
Views: 272

Re: Sensehat unreliability, anyone else?

There is this https://shop.pimoroni.com/products/mp2636-power-booster-charger-module Which is good for 2A out. I may end up switching to one at some point. Just to mention, ive had two of these module boards and neither work with the pi3b, i dont think that they can provide the power needed. Actual...
by alphanumeric
Sun Apr 07, 2019 3:58 pm
Forum: Troubleshooting
Topic: Sensehat unreliability, anyone else?
Replies: 11
Views: 272

Re: Sensehat unreliability, anyone else?

The A+ uses the same power draw as the Zero though. It's the initial draw of the 3B+ that may be the problem here? Totally agree, just posting what is actually working for me. I originally went with the A+ because the powerboost can only supply a max of 1 A. That and I wanted as small a foot print ...
by alphanumeric
Sun Apr 07, 2019 3:42 pm
Forum: Troubleshooting
Topic: Sensehat unreliability, anyone else?
Replies: 11
Views: 272

Re: Sensehat unreliability, anyone else?

I have a Sense Hat mounted to an A+ (not 3A+) powered by a powerboost 1000c and 6600 MAH LIPO battery. No undervolt issues that I am aware of. It runs headless most of the time. The only time I hook up a monitor is to tweak my python code. My powerboost feeds the +5V to the Pi and sense hat via a Pr...
by alphanumeric
Fri Apr 05, 2019 4:37 pm
Forum: Troubleshooting
Topic: no power when camera attached
Replies: 11
Views: 184

Re: no power when camera attached

Normally I would suggest trying that camera in another Pi. That would tell you if its the Pi or the camera. Without knowing if its damaging the Pi or not, I'd be hesitant to do it.
by alphanumeric
Fri Apr 05, 2019 11:31 am
Forum: Troubleshooting
Topic: I suspect My Pi is bricked, due to a failed PSU, but how do I check?
Replies: 25
Views: 594

Re: I suspect My Pi is bricked, due to a failed PSU, but how do I check?

The polyfuse is on the top side of every Pi I have checked (B+ 2B 3B 3A+) except the original B. Not fitted on Pi0 of course. Note that the component number varies between models. This is it underneath on the 3B+ polyfuse2.jpg Its in that same spot on the back side of my 3A+ also. And its on the ba...
by alphanumeric
Fri Apr 05, 2019 8:30 am
Forum: HATs and other add-ons
Topic: HAT blocks or weakens WIFI
Replies: 9
Views: 358

Re: HAT blocks or weakens WIFI

mattmiller wrote:
Fri Apr 05, 2019 8:21 am
JAAMOI Where is the wi-fi antenna on a Pi3B+ ?
Its that triangle shaped indentation on edge of the board right next to the WIFI chip.
by alphanumeric
Fri Apr 05, 2019 8:23 am
Forum: Troubleshooting
Topic: I suspect My Pi is bricked, due to a failed PSU, but how do I check?
Replies: 25
Views: 594

Re: I suspect My Pi is bricked, due to a failed PSU, but how do I check?

A diode when forward biased will be almost a short? A 0.3 or 0.7 volt drop across it is normal. Reverse biased it should be an open. The protection diode is not like a normal diode. I believe it is bi-directional and shouldn't conduct in either direction until the voltage hits 6.0V (in this case). ...
by alphanumeric
Thu Apr 04, 2019 10:52 pm
Forum: HATs and other add-ons
Topic: HAT blocks or weakens WIFI
Replies: 9
Views: 358

Re: HAT blocks or weakens WIFI

I can't answer your question directly but may have an alternate solution? Maybe putting more distance between your Hat and the Pi may help? Maybe a booster header, https://shop.pimoroni.com/products/booster-header and taller standoffs https://www.adafruit.com/product/2337 Or a stacking header, https...
by alphanumeric
Thu Apr 04, 2019 10:37 pm
Forum: Off topic discussion
Topic: Learning Electronics
Replies: 56
Views: 1764

Re: Learning Electronics

I've spent way more money on bits and bytes for my Raspberry Pi addiction, now that I'm retired than I ever did on tech when I was working. :D
Only going to get worse now that I have a BBC Microbit and an Arduino Uno. :lol:
by alphanumeric
Thu Apr 04, 2019 10:33 pm
Forum: HATs and other add-ons
Topic: [Question] Case to hold together RPI 3B + RPI Powerpack 2.0
Replies: 2
Views: 220

Re: [Question] Case to hold together RPI 3B + RPI Powerpack 2.0

I use some of the Pimoroni Pibow cases, namely the coupe cases, https://shop.pimoroni.com/?q=pibow%20coupe They have modification layers, https://shop.pimoroni.com/products/pibow-modification-layers?variant=1047619725 Height extensions for the full size Pibow cases etc. I've used the Ninja Black dif...

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