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by ryanteck
Mon Jun 08, 2020 12:45 pm
Forum: Compute Module
Topic: EMMC Endurance Specifications
Replies: 1
Views: 244

Re: EMMC Endurance Specifications

Ok so I checked the modules on the 16GB CM3+ and that results in a Samsung KLMAG1JETD-B041 with the 8GB from the same family at KLM8G1GETF-B04. The only datasheet I've found is http://www.uugear.com/doc/datasheet/KLMAG1JETD-B041.pdf , but compared to when looking at SD cards also of MLC memory such ...
by ryanteck
Fri Jun 05, 2020 9:20 am
Forum: Compute Module
Topic: EMMC Endurance Specifications
Replies: 1
Views: 244

EMMC Endurance Specifications

Hi, So the main reason behind planning to use the EMMC on the Compute Module 3+ was because of it being theoretically better than an SD Card. However as the 8GB Model is currently out of stock and not showing as in stock at Farnell until October we're having to look at alternatives around this which...
by ryanteck
Mon Jan 20, 2020 8:26 pm
Forum: Compute Module
Topic: CM3+ EMMC Corruptions?
Replies: 7
Views: 862

Re: CM3+ EMMC Corruptions?

I haven't had a chance to test on my CM3 but will try to.

I don't believe it is the image at fault, we do create our own in our case using the iot-pi-gen tool for a Raspbian Lite image with our software pre-loaded.
by ryanteck
Thu Jan 16, 2020 6:26 pm
Forum: Compute Module
Topic: CM3+ EMMC Corruptions?
Replies: 7
Views: 862

Re: CM3+ EMMC Corruptions?

It does seem rather odd, I haven't actually tried it with my CM3 but do have it with two different CM3+ Boards.

But indeed, the primary reason for using the CM3 is to not have the risk of SD Corruptions where as this is what's happening :shock:
by ryanteck
Wed Jan 15, 2020 9:03 pm
Forum: Compute Module
Topic: CM3+ EMMC Corruptions?
Replies: 7
Views: 862

Re: CM3+ EMMC Corruptions?

It seems the most likely culpret is something along the power lines so will do some more testing to see if I can solve it. I have probed the voltage rails and they did seem within tolerance. The CM3+ is on it's own daughterboard from our main board as this allowed us to do an extra feature by having...
by ryanteck
Tue Jan 14, 2020 1:52 pm
Forum: Compute Module
Topic: CM3+ EMMC Corruptions?
Replies: 7
Views: 862

Re: CM3+ EMMC Corruptions?

It doesn't seem it, I had to power cycle it a couple of times and it failed both times. Then plugged in a UART cable to see if I could get any error logs and it then worked perfectly that time. It does kind of make me think based on that it could be power. However sometimes corruptions / boot failur...
by ryanteck
Tue Jan 14, 2020 1:04 pm
Forum: Compute Module
Topic: CM3+ EMMC Corruptions?
Replies: 7
Views: 862

CM3+ EMMC Corruptions?

Hi, I'm currently developing a board that uses the RPi CM3+ and I've been noticing an unusal issue on it. Sometimes when it is powered up or rebooted it seems like the data has corrupted on the EMMC, however other times it boots up perfectly fine. Along with this I have re-flashed the EMMC and the i...
by ryanteck
Sat Apr 07, 2018 1:31 pm
Forum: For sale
Topic: PoE HAT for Raspberry Pi 3 Model B+
Replies: 8
Views: 6168

Re: PoE HAT for Raspberry Pi 3 Model B+

so far I have not heard the official one will have (useable) pass through headers either. :roll: :( note that this thing, according to the HAT rules, is NOT a HAT! It has no software control, and/or identification EEPROM. its also doubtful how well it will play with different models of POE injector...
by ryanteck
Sat Oct 07, 2017 7:09 pm
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

Re: WiFi not working on Stretch

Re Etcher: I've been doing it this way for 5 Years. So I'm certain DD isn't the issue. Could be that it wrote a block wrong. (Also I don't understand how extracting a zip file every time is more reliable than extracting it once and using the extracted image.) I wrote the 2017-09-07 Lite image to SD ...
by ryanteck
Sat Oct 07, 2017 1:43 pm
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

Re: WiFi not working on Stretch

I don't believe its the image. Worked first time when plugging in a USB Dongle. Seems to be a broadcom driver issue. A re-flash could fix that.

Also can you not keep trying to make me use Etcher? I don't see the need nor want to use it. Saying to everyone "Use X software" won't fix every issue.
by ryanteck
Sat Oct 07, 2017 9:27 am
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

Re: WiFi not working on Stretch

Sorry, Pi 3 built in adaptor. I'll plug in a third party one to see if that then works. If you are using a Pi3, then Stretch definitely works. I would check the SHA256 hash of your download to see if it was corrupt, and use Etcher to write the card once you are sure you have a good download. I don'...
by ryanteck
Sat Oct 07, 2017 9:16 am
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

Re: WiFi not working on Stretch

I'll move it closer to the AP and try again. However I was having no luck when it was originally closer.

No other USB devices plugged in, A GPIO RFID board and a few transistors.
by ryanteck
Sat Oct 07, 2017 7:09 am
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

Re: WiFi not working on Stretch

Sorry, Pi 3 built in adaptor. I'll plug in a third party one to see if that then works.
by ryanteck
Sat Oct 07, 2017 6:51 am
Forum: Troubleshooting
Topic: WiFi not working on Stretch
Replies: 13
Views: 3877

WiFi not working on Stretch

Hi, I seem to be experiencing wi-fi setup issues on stretch. Using 2017-09-07 Lite image I was getting no wi-fi connection so started to do some diagnostics of which while the wlan0 device shows under iwconfig it doesn't on ifconfig unless the -a option is used. After running dmesg I found an error ...
by ryanteck
Sun May 22, 2016 7:27 am
Forum: For sale
Topic: RTk.GPIO Adapter - USB Raspberry Pi Compatible GPIO Header
Replies: 6
Views: 3423

Re: RTk.GPIO Adapter - USB Raspberry Pi Compatible GPIO Head

PiZeros are funny. I can't get hold of them to sell and from what I can tell there's no profit involved (No company can sell stuff without profit hence the need to bundle them with lots of add-ons and also made apparent that a cable to connect a camera also costs £4). It kinda targets a different ma...
by ryanteck
Thu Jun 04, 2015 7:38 pm
Forum: Off topic discussion
Topic: Ryanteck Robot using an Arduino?
Replies: 9
Views: 1360

Re: Ryanteck Robot using an Arduino?

You sure can use jumper wires instead, you could use male to male ones or male to female ones with an arduino.

You'd need to connect 5V (Pin 2) Both sides of the motor (GPIO Pins 17,18 & 22,23) and ground (I think I used pin number 9 for the board).

You shouldn't need to wire anything extra up.
by ryanteck
Tue Mar 17, 2015 10:48 am
Forum: Beginners
Topic: Ryantek Budget Robot
Replies: 4
Views: 1001

Re: Ryantek Budget Robot

Hia, We're currently swapping the website over today with the focus of merging the Store and Documentation to the one site rather than 2 separate sites. We're hoping to have it all done by the end of this weekend. I've been busy with University assignments the last week which is why I'm slightly beh...
by ryanteck
Tue Apr 08, 2014 6:00 pm
Forum: HATs and other add-ons
Topic: PITFT and Ryanteck MCB
Replies: 10
Views: 2819

Re: PITFT and Ryanteck MCB

I actually don't like alcohol at all flavour wise but I rarely go down to London (Only been once). I'm more of a person who visits cambridge.
by ryanteck
Mon Mar 24, 2014 9:00 pm
Forum: HATs and other add-ons
Topic: PITFT and Ryanteck MCB
Replies: 10
Views: 2819

Re: PITFT and Ryanteck MCB

Hia,

Not sure if the PiTFT will work via ribbon cable but the RPi MCB Should work off them pins instead.

The wiring looks right for the motors apart from the ground pin which needs changing to pin 9. (Right of the blue wire).
by ryanteck
Mon Mar 24, 2014 11:36 am
Forum: HATs and other add-ons
Topic: PITFT and Ryanteck MCB
Replies: 10
Views: 2819

Re: PITFT and Ryanteck MCB

You may be able to with an GPIO Extension cable. As long as Pin 1 Matches Pin 1 on the RPi MCB all should be fine. If you want take a picture first and I'l reply weather it should work. Just make sure if you do try stuff out don't have the motors and power for the RTK RPi M.C.B plugged in until you ...
by ryanteck
Sun Mar 23, 2014 12:31 pm
Forum: HATs and other add-ons
Topic: PITFT and Ryanteck MCB
Replies: 10
Views: 2819

Re: PITFT and Ryanteck MCB

Hia there,

The RTK RPi M.C.B just requires them 4 Pins + 5V and Ground.

The pins should be fine if you plug an RPi MCB into the PiTFT from the looks of the map.

The Adafruit TFT also requires 5V and GND. We use pin 9 for the ground on the RPi MCB
by ryanteck
Fri Dec 20, 2013 11:23 pm
Forum: Other projects
Topic: Printer for RaspberryPi as Point of sale
Replies: 9
Views: 12102

Re: Printer for RaspberryPi as Point of sale

From what I remember a lot of it depends on what E Point Of Sale software you are using as well. From what I remember if the printer is an RS232 (Serial) printer then it *should* work if it works with your software as these just rely on a serial connection with the host device (likely a USB to Seria...
by ryanteck
Thu Sep 12, 2013 11:43 am
Forum: User groups and events
Topic: Possible Stevenage / Hertfordshire Raspberry Jam!
Replies: 11
Views: 3772

Re: Possible Stevenage / Hertfordshire Raspberry Jam!

You can buy tickets for the event at http://stvraspberryjam.eventbrite.com/

Look forward to seeing you there!
by ryanteck
Mon Sep 09, 2013 12:54 pm
Forum: User groups and events
Topic: Possible Stevenage / Hertfordshire Raspberry Jam!
Replies: 11
Views: 3772

Re: Possible Stevenage / Hertfordshire Raspberry Jam!

Looks like the jam is going ahead! Venue is likely going to be North Hertfordshire College. Date expected to be either the 26th of October or 23rd of November.
by ryanteck
Mon Sep 02, 2013 8:02 am
Forum: User groups and events
Topic: Possible Stevenage / Hertfordshire Raspberry Jam!
Replies: 11
Views: 3772

Re: Possible Stevenage / Hertfordshire Raspberry Jam!

I now have a possible venue in St Albans (the new Herts Hackspace) to host the jam at. I plan to visit within the next week to be able to see the size of the venue and how many people we could invite.

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