HanTek DSO2xxx Reset or Reboot and LED dimming suggestions  - Page 1
Forum section: electronics / testgear

author: imk
author_rank: Regular Contributor
timestamp: May 23, 2021, 06:14:36 pm
content: HelloWell after much deliberation and searching I ordered a Hantek DSO2D10 which at £170 and only seven days from China via Banggood.I thought was best bang for buck deal i was going to get considering the Rigol or Siglent equivalents were three times the monies.After two days of testing I have crashed/locked it up and couple of times and had to power off/on to get it going again.Both these situations are repeatable so i have emailed Hantek and maybe they will issue a software fix in the future, not holding my breath.Also the PC software has a couple of nasty feature that cause DSO2D10 issues after the PC to scope connection is removed.All in all at the price i am not worried and a amazed at the amount of function there is in a scope of this price.Only thing I find a bit much is the illuminated buttons are a bit bright for me so they need dimming down somewhat.First idea that comes to mind is pull scope apart an put dab of paint on the SMD LED's, any other ideas please?Other question is, is there a way to reset/reboot the scope without powering it off or is there a way to add a microcontroller reset button rather than power cycle it?Many thanks imk

author: AndrewBCN
author_rank: Frequent Contributor
timestamp: May 23, 2021, 11:17:21 pm
content: There is probably a reset signal that you could trace back to the power supply or the main CPU. But really instead of hacking the hardware, I would just wait for a firmware upgrade from Hantek. They should have implemented a watchdog timer by now, it's a feature that was added to the Linux kernel decades ago, it solves the problem of automatically resetting the hardware if there is a software freeze, it costs $0.00, and it's very simple to use.

author: imk
author_rank: Regular Contributor
timestamp: May 26, 2021, 09:07:20 am
content: Just thought you might be interested to know I received a unofficial DSO2D10 firmware update dso3kb_20210510 yesterday that seems much more stable.I can still lock it up if i spin the sec/div really fast but it is much better than dso3kb_20210416.I think we are making progress, price is now £165 on BangGood I think i might buy another as a spare.Lets face it sooooooooooooooo much function for £165 i don't think will ever be seen again :-)Check out the pic, serial UART Trigger/Decode ch1 and sine output from internal sig gen on ch2LED Button's are bit bright but i'll 3D print some covers i think :-)But it knocks my Tektronix 2236 for six with respect to functionality :-( and it fit on my desk well done Hantek :-)

author: Microcheap
author_rank: Frequent Contributor
timestamp: May 26, 2021, 03:35:43 pm
content: It's indeed a nice piece of kit but, as usual, let a bit down by Hantek's poor software/firmware. At least, they are improving and supporting it with frequent updates.Regarding the freezes, I've posted in anotherthreada possible solution that solved a similar problem I had.The original poster in that thread never replied, so I don't know if it worked or not for him as well, or he was just uninterested in the suggestion. Anyway, the information is there if you want to try.