Search found 249 matches

by stephen_usher
Wed Jul 01, 2020 12:00 am
Forum: Hardware
Topic: QL-SD
Replies: 62
Views: 5860

Re: QL-SD

This is going to cause me to change my vote to a single full-SD card as it allows you to have your QL connected wirelessly to a PC. You don't *HAVE* to have a large SD card connector to do this. Merely use and extension cable, which may give you better WiFi signal anyway: https://www.amazon.co.uk/E...
by stephen_usher
Tue Jun 30, 2020 1:45 pm
Forum: Hardware
Topic: QL-SD
Replies: 62
Views: 5860

Re: QL-SD

I'm have been experimenting with SDIO cards like the Toshiba FlashAir for some time now, giving QL-SD access to WLAN and peer-to-peer networking - Those can generally be had as large-size cards only, so must be kept in mind as well. Tobias (Off-topic) So, you can hijack the LAN interface and use th...
by stephen_usher
Tue Jun 30, 2020 1:42 pm
Forum: Hardware
Topic: QL-SD
Replies: 62
Views: 5860

Re: QL-SD

Hi, I have changed my vote, after a little thought, I think with ful size SDHC cards would be better. As stated above this gives compatibility with other QL based systems, like the Q68 which has 2 SDHC Slots, PC with QPC2/ SMSQmulator. Also all my PCs and laptop have full size SD Slots. So my vote ...
by stephen_usher
Mon Jun 29, 2020 11:27 am
Forum: Hardware
Topic: QL-SD
Replies: 62
Views: 5860

Re: QL-SD

I'd like to be able to swap the card between QLs easily without having to disassemble, so either 1 or 2 is fine for me. 2 would be useful if you want to do back-ups or duplicate to give to others, so it would probably be preferable. What components on there are non-SMD? Just the headers? What could ...
by stephen_usher
Sat Jun 27, 2020 8:16 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 997

Re: vDrive: With MDV sound? I wonder.

Here are the schematics for the vDrive sampled sound board plus source code and compiled HEX file to load onto the ATTiny85 20U.

http://www.lingula.org.uk/~steve/share/vdrive-sound/
by stephen_usher
Sat Jun 27, 2020 5:32 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 997

Re: vDrive: With MDV sound? I wonder.

Actually I think I'm there, other than making a PCB and soldering the components. I've created a new and better sample, with a higher volume and cutting out some of the peaks and then set the ATTiny85 to play at double the speed it was previously, which was already a factor of 4 faster than the samp...
by stephen_usher
Sat Jun 27, 2020 1:46 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 997

Re: vDrive: With MDV sound? I wonder.

I've now managed to get the vDrive to control the power to the ATTiny85, not before accidentally blowing up the LED when I had the base and collector wired the wrong way araound, but that's easily fixable. https://youtu.be/KWYmWIQzo5A I need to add an opamp and a low-pass filter to get the proper ru...
by stephen_usher
Fri Jun 26, 2020 2:50 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 997

Re: vDrive: With MDV sound? I wonder.

Well, I've managed to program an ATTiny85 device with a sampled recording of a Microdrive running.

It's a bit too quiet and needs a low-pass filter. I'd also need a transistor to allow the output of the red LED to trigger the device.

https://youtu.be/JjI5IM0YOJQ
by stephen_usher
Thu Jun 25, 2020 3:12 pm
Forum: Hardware
Topic: ql printer info needed
Replies: 13
Views: 1002

Re: ql printer info needed

Interesting that the date printed s in US format.
by stephen_usher
Wed Jun 24, 2020 10:08 pm
Forum: Hardware
Topic: vDrive: With MDV sound? I wonder.
Replies: 9
Views: 997

vDrive: With MDV sound? I wonder.

A conversation on the QL Facebook page got me wondering how easy it would be to get the digitised sound of a microdrive running to play when the vDrive was accessed. I came across this interesting project, with uses the internal flash in an ATtiny85 chip as a sample storage and outputs audio directl...