Search found 9 matches

by Tugo
Sun Feb 25, 2018 11:28 am
Forum: DSO Shell
Topic: Li-ion power mod
Replies: 144
Views: 184710

Re: Li-ion power mod

alphaseek: Sorry for my late reply. I attached a couple of pictures (main board, analog board). I hope they are self explained. In case further explanation is needed, please let me know ;-) Regarding noise problems: I tested everything with just 9V battery and what I have and there are differences, ...
by Tugo
Mon Feb 12, 2018 12:59 pm
Forum: DSO Shell
Topic: Li-ion power mod
Replies: 144
Views: 184710

Re: Li-ion power mod

Well, yes. But there is also an internal diode in the mosfet (between S and D) which is why it works on battery (while you don't have external voltage). I wanted to put my pictures here so that maybe somebody else would benefit from it, but I was (and still am) a little bit too busy at the moment to...
by Tugo
Sun Feb 11, 2018 6:34 pm
Forum: DSO Shell
Topic: Li-ion power mod
Replies: 144
Views: 184710

Re: Li-ion power mod

Hello all! I believe you don't need to mod the switch. jye1 already made a board that do all of the things you guys want. It is here . And if you don't want to buy that you can even make yourself a switch from that schematic . All you need is that transistor Q1, D2 and R3 from figure 1. Top line is ...
by Tugo
Wed Aug 02, 2017 5:05 am
Forum: DSO Shell
Topic: Buying a DSO Shell, questions regarding internal battery
Replies: 6
Views: 5648

Re: Buying a DSO Shell, questions regarding internal battery

I bought this battery and it fits perfectly:
http://www.ebay.com/itm/3-7V-1500-mAh-L ... Sw6GBZcLCS

Best regards,
Tomaz
by Tugo
Sat Apr 22, 2017 6:54 am
Forum: DSO Shell
Topic: Probes
Replies: 1
Views: 2613

Re: Probes

Yes, you can use it.
Your probe is "too good" for DSO Shell.
It means you could use it on better oscilloscope (by better I mean to use it with the oscilloscope that has higher bandwidth).
I own P6100 and use it with DSO Shell ;-)

Good luck.

Best regards,
Tomaz
by Tugo
Sat Apr 22, 2017 6:43 am
Forum: DSO Shell
Topic: [SOLVED] Cant flash firmware
Replies: 22
Views: 18637

Re: [SOLVED] Cant flash firmware

What happened in my case?

The one that didn't work was removed from ebay.

This one worked:
http://www.ebay.com/itm/182329358022?_t ... EBIDX%3AIT

It is not expensive and works like a charm :-)

Best regards,
Tomaz
by Tugo
Sun Apr 09, 2017 8:07 am
Forum: DSO Shell
Topic: [SOLVED] Cant flash firmware
Replies: 22
Views: 18637

Re: [SOLVED] Cant flash firmware

Thank you both.

I did ordered CP2103.

Jumper was put to 3.3V and LEDs they are blinking unfortunetly I cannot test it with any other UART device at the moment. I will test it with another UART at USB to make a loopback.

Best regards,
Tomaz
by Tugo
Sat Apr 08, 2017 11:23 am
Forum: DSO Shell
Topic: [SOLVED] Cant flash firmware
Replies: 22
Views: 18637

Re: [SOLVED] Cant flash firmware

Thank you for your reply! I did put it in bootloader mode (I soldered 2 jumpers together as it was in description) and screen was white. Only 3 pins were used as you described. FTDI board that was used was this one: http://www.ebay.com/itm/172447812715?_trksid=p2057872.m2749.l2649&ssPageName=STR...
by Tugo
Fri Apr 07, 2017 9:22 am
Forum: DSO Shell
Topic: [SOLVED] Cant flash firmware
Replies: 22
Views: 18637

Re: [SOLVED] Cant flash firmware

I tried with FTDI FT232RL but I had no luck.
Adapter was seen in windows (and in aplication), but it didn't detect the the DSO Shell board.
I did connect Rx-->Tx and Tx-->Rx but without luck.
If you have any pointer, please feel free to share them :-)

Thank you.

Best regards,
Tomaz