# Support **URL:** https://forum.qoitech.com/c/community-support/12.md?page=1 [Latest](https://forum.qoitech.com/latest.md) · [Categories](https://forum.qoitech.com/categories.md) **Page:** 2 --- ## [Automating current sink functionality using set\_battery\_profile](https://forum.qoitech.com/t/automating-current-sink-functionality-using-set-battery-profile/487)
**Author:** [@charlie-resilient](https://forum.qoitech.com/u/charlie-resilient)\ **Replies:** 6\ **Last updated:** [March 8, 2024, 5:42pm UTC](https://forum.qoitech.com/t/automating-current-sink-functionality-using-set-battery-profile/487 "2024-03-08T17:42:38Z")
I’d like to control the battery profiler through the JSON TCP API. Specifically, I’d like to programmatically update the “constant current” value as seen in the image below: I see the set\_battery\_profile() function i… --- ## [Traces Events Tags](https://forum.qoitech.com/t/traces-events-tags/491)
**Author:** [@f.jacques](https://forum.qoitech.com/u/f.jacques)\ **Replies:** 1\ **Last updated:** [February 28, 2024, 9:03am UTC](https://forum.qoitech.com/t/traces-events-tags/491 "2024-02-28T09:03:12Z")
It would be interesting to be able to create a selection on the graph and add a customized message to the selection. This would ease the signal analysis and keep details for future reference. We just need to add tags an… --- ## [Battery life estimator source selection](https://forum.qoitech.com/t/battery-life-estimator-source-selection/490)
**Author:** [@f.jacques](https://forum.qoitech.com/u/f.jacques)\ **Replies:** 1\ **Last updated:** [February 28, 2024, 9:00am UTC](https://forum.qoitech.com/t/battery-life-estimator-source-selection/490 "2024-02-28T09:00:20Z")
It would be nice the be able to select the source for the battery life estimator. If we use the external ADC for doing the measurement, we lose this useful functionality. --- ## [Otii Ace as Battery Sink](https://forum.qoitech.com/t/otii-ace-as-battery-sink/488)
**Author:** [@jmills](https://forum.qoitech.com/u/jmills)\ **Replies:** 1\ **Last updated:** [February 28, 2024, 8:57am UTC](https://forum.qoitech.com/t/otii-ace-as-battery-sink/488 "2024-02-28T08:57:55Z")
Hi there. I am using my Otii Ace as a low power battery simulator. I am attempting to ‘charge’ the Otii with 150mA. Settings are below: It seems whenever my charging circuit attempts to ‘charge’ the Otii, the Otii i… --- ## [Correct pin connection for UART to receive Serial on RX](https://forum.qoitech.com/t/correct-pin-connection-for-uart-to-receive-serial-on-rx/229)
**Author:** [@wegunterjr](https://forum.qoitech.com/u/wegunterjr)\ **Replies:** 8\ **Last updated:** [February 26, 2024, 7:56am UTC](https://forum.qoitech.com/t/correct-pin-connection-for-uart-to-receive-serial-on-rx/229 "2024-02-26T07:56:38Z")
I am not sure what I am doing wrong, but I have opened OTII and asked it to read from Serial, but it isn’t showing any data. is there something special I need to do? --- ## [Otii Arc Pro License Enquiry](https://forum.qoitech.com/t/otii-arc-pro-license-enquiry/486)
**Author:** [@dhivin](https://forum.qoitech.com/u/dhivin)\ **Replies:** 1\ **Last updated:** [January 24, 2024, 6:46am UTC](https://forum.qoitech.com/t/otii-arc-pro-license-enquiry/486 "2024-01-24T06:46:26Z")
Hello, I’m interested in upgrading to the Otii Arc Pro software, but I’m unsure about the email associated with the Otii Arc. Can I use my own email address to access the Pro software, or is it necessary to download it … --- ## [Otii Arc Pro - Uart channel delay](https://forum.qoitech.com/t/otii-arc-pro-uart-channel-delay/482)
**Author:** [@federico](https://forum.qoitech.com/u/federico)\ **Replies:** 1\ **Last updated:** [January 18, 2024, 8:36am UTC](https://forum.qoitech.com/t/otii-arc-pro-uart-channel-delay/482 "2024-01-18T08:36:46Z")
Hi all, I’m using the uart channel of Otii Arc Pro to automate some measurements on Raspberry Pi 3B+ (RPI), but I ran some tests and noticed that the uart channel adds a non-negligible delay in RPI-PC communication. The… --- ## [Measure external battery with shunt doesn't work on ADC](https://forum.qoitech.com/t/measure-external-battery-with-shunt-doesnt-work-on-adc/485)
**Author:** [@fastcar420](https://forum.qoitech.com/u/fastcar420)\ **Replies:** 7\ **Last updated:** [January 18, 2024, 7:39am UTC](https://forum.qoitech.com/t/measure-external-battery-with-shunt-doesnt-work-on-adc/485 "2024-01-18T07:39:02Z")
Hi friends, I have been running some measurements on my DUT while being powered by the Otii Arc Main power. Now I run my DUT over the external battery and I’ve added a 0.4 ohm shunt on the positive side, and connected … --- ## [USB under voltage detected](https://forum.qoitech.com/t/usb-under-voltage-detected/358)
**Author:** [@wmellick](https://forum.qoitech.com/u/wmellick)\ **Replies:** 6\ **Last updated:** [December 26, 2023, 9:18pm UTC](https://forum.qoitech.com/t/usb-under-voltage-detected/358 "2023-12-26T21:18:23Z")
I get an USB under-voltage detected, main power switched off error sometimes as soon as I launch the software, sometimes quite a while later after I have applied power to my device. What is this telling me about my setu… --- ## [Failed to firmware upgrade](https://forum.qoitech.com/t/failed-to-firmware-upgrade/484)
**Author:** [@baldurlabs](https://forum.qoitech.com/u/baldurlabs)\ **Replies:** 0\ **Last updated:** [December 23, 2023, 9:27pm UTC](https://forum.qoitech.com/t/failed-to-firmware-upgrade/484 "2023-12-23T21:27:50Z")
I have one of the good old Otii devices that I have not been using for a couple of years, so I wanted to firmware upgrade it. However, this has given some unexpected issues. I have both tried to firmware upgrade it from… --- ## [Impossible to connect to otii tool](https://forum.qoitech.com/t/impossible-to-connect-to-otii-tool/483)
**Author:** [@cyblard14](https://forum.qoitech.com/u/cyblard14)\ **Replies:** 0\ **Last updated:** [December 8, 2023, 3:37pm UTC](https://forum.qoitech.com/t/impossible-to-connect-to-otii-tool/483 "2023-12-08T15:37:49Z")
All, i have recently bought 1 Otii Ace Pro tool. However, after being registered on your website, I cannot use the otii3 version 3.4.1 tool. I cannot click on user management to declare my tool. I can do nothing. see … --- ## [Otii 3.4.1 different behaviour each time when enabling](https://forum.qoitech.com/t/otii-3-4-1-different-behaviour-each-time-when-enabling/481)
**Author:** [@emiel](https://forum.qoitech.com/u/emiel)\ **Replies:** 1\ **Last updated:** [November 28, 2023, 1:06pm UTC](https://forum.qoitech.com/t/otii-3-4-1-different-behaviour-each-time-when-enabling/481 "2023-11-28T13:06:15Z")
My team created a battery profile and the intention was to use it for some checks. Note: The battery profile was created over a very short time periode (4 days) compared to the expected lifespan we expect it to have in … --- ## [Otii Arc Pro - Core error 3221226505](https://forum.qoitech.com/t/otii-arc-pro-core-error-3221226505/479)
**Author:** [@federico](https://forum.qoitech.com/u/federico)\ **Replies:** 2\ **Last updated:** [November 27, 2023, 8:08am UTC](https://forum.qoitech.com/t/otii-arc-pro-core-error-3221226505/479 "2023-11-27T08:08:39Z")
Hi all, I’m using the Otii Arc Pro device and the TCP Server API to conduct a rather long experiment campaign, but after about 3 hours the experiments crashed. In my script log I found the line “Undocumented error: {‘ty… --- ## [Write\_tx with non-ascii characters](https://forum.qoitech.com/t/write-tx-with-non-ascii-characters/478)
**Author:** [@emooney](https://forum.qoitech.com/u/emooney)\ **Replies:** 3\ **Last updated:** [October 11, 2023, 1:20pm UTC](https://forum.qoitech.com/t/write-tx-with-non-ascii-characters/478 "2023-10-11T13:20:11Z")
Hi! I had a quick question about the write\_tx(“”) function. I need to write non-ascii characters through the UART, but when I try it with write\_tx, it sends 2 bytes of data instead of 1 (all ascii characters just sent t… --- ## [Time Offset for charts](https://forum.qoitech.com/t/time-offset-for-charts/477)
**Author:** [@mtudvikling](https://forum.qoitech.com/u/mtudvikling)\ **Replies:** 2\ **Last updated:** [October 2, 2023, 8:50am UTC](https://forum.qoitech.com/t/time-offset-for-charts/477 "2023-10-02T08:50:35Z")
Hi, I am confused about the features of the Otii 3 (v.3.4.0 - Pro license) Given this comment : Feature requests - improved charting; I was under the impression that you can add a time offset to easily compare recordin… --- ## [Command timeout](https://forum.qoitech.com/t/command-timeout/475)
**Author:** [@pikkutimo](https://forum.qoitech.com/u/pikkutimo)\ **Replies:** 9\ **Last updated:** [September 15, 2023, 10:35am UTC](https://forum.qoitech.com/t/command-timeout/475 "2023-09-15T10:35:17Z")
Hello, I’m currently struggling with a following problem. I’m currently working on a project porting a firmware to another chipset, and for testing purposes we’ve created jenkins pipeline that builds, and flashes the fi… --- ## [Otii Arc non-stop sourcing?](https://forum.qoitech.com/t/otii-arc-non-stop-sourcing/476)
**Author:** [@ebikeotii8](https://forum.qoitech.com/u/ebikeotii8)\ **Replies:** 1\ **Last updated:** [September 8, 2023, 6:07am UTC](https://forum.qoitech.com/t/otii-arc-non-stop-sourcing/476 "2023-09-08T06:07:26Z")
Hi guys. I have been using our Otii Arc in an automated test setup for some time, the setup is like following: Otii powered by external DC power supply + USB. Device under test is powered by Otii, and the device is nev… --- ## [Ubuntu 22.04 Installation problem](https://forum.qoitech.com/t/ubuntu-22-04-installation-problem/441)
**Author:** [@odi](https://forum.qoitech.com/u/odi)\ **Replies:** 4\ **Last updated:** [August 9, 2023, 12:34pm UTC](https://forum.qoitech.com/t/ubuntu-22-04-installation-problem/441 "2023-08-09T12:34:17Z")
Hi, I tried to use latest Otii SW on Ubuntu 22.04 Mainly I struggled to do the login procedure…found the forum post regarding fixing libssl to get it working. It gives an error during installation already stating it d… --- ## [Send non-ASCII characters via Otii UART](https://forum.qoitech.com/t/send-non-ascii-characters-via-otii-uart/442)
**Author:** [@amitchone](https://forum.qoitech.com/u/amitchone)\ **Replies:** 3\ **Last updated:** [August 3, 2023, 6:59am UTC](https://forum.qoitech.com/t/send-non-ascii-characters-via-otii-uart/442 "2023-08-03T06:59:56Z")
Hi, I am using an Otii Arc to develop a UART-based interface. Is it possible to send non-ASCII characters via the UART terminal built in to the Otii software? Furthermore, if I script the device (I am planning to do t… --- ## [Long term data logging with OTII](https://forum.qoitech.com/t/long-term-data-logging-with-otii/190)
**Author:** [@otii\_or\_not\_otii](https://forum.qoitech.com/u/otii_or_not_otii)\ **Replies:** 9\ **Last updated:** [July 31, 2023, 9:23am UTC](https://forum.qoitech.com/t/long-term-data-logging-with-otii/190 "2023-07-31T09:23:52Z")
Hi there I’m currently looking into using the OTII to measure energy use over longer term time periods… here’s what we’re currently thinking: Using a headless linux setup on a x86 machine with the OTII attached to a … --- ## [Otii Ace Pro voltage dip](https://forum.qoitech.com/t/otii-ace-pro-voltage-dip/473)
**Author:** [@hhmikeho](https://forum.qoitech.com/u/hhmikeho)\ **Replies:** 1\ **Last updated:** [June 21, 2023, 11:48am UTC](https://forum.qoitech.com/t/otii-ace-pro-voltage-dip/473 "2023-06-21T11:48:46Z")
I am using an Otii Ace Pro to provide power to a small PCBA. The Otii is powered by USB and running in Power Box mode at 4V. When I enable power, a 1.8V LDO on the board turns on, which coincides with a large current spi… --- ## [Low current profiling](https://forum.qoitech.com/t/low-current-profiling/471)
**Author:** [@pscheidler](https://forum.qoitech.com/u/pscheidler)\ **Replies:** 1\ **Last updated:** [May 23, 2023, 5:46am UTC](https://forum.qoitech.com/t/low-current-profiling/471 "2023-05-23T05:46:31Z")
Is there any way to run the battery profiler at 20 uA for the low discharge current? The minimum in the UI is 100 uA. Thank you --- ## [Running Otii software on Raspberry Pi](https://forum.qoitech.com/t/running-otii-software-on-raspberry-pi/370)
**Author:** [@simonfisherhwm](https://forum.qoitech.com/u/simonfisherhwm)\ **Replies:** 7\ **Last updated:** [May 19, 2023, 6:00am UTC](https://forum.qoitech.com/t/running-otii-software-on-raspberry-pi/370 "2023-05-19T06:00:08Z")
Hi I’d like to run the Otii software on a Raspberry Pi and leave running for long periods of time without tying up a PC. Is this possible? --- ## [Otii Ace Pro external wall adapter](https://forum.qoitech.com/t/otii-ace-pro-external-wall-adapter/470)
**Author:** [@bc\_metco](https://forum.qoitech.com/u/bc_metco)\ **Replies:** 4\ **Last updated:** [May 16, 2023, 6:10pm UTC](https://forum.qoitech.com/t/otii-ace-pro-external-wall-adapter/470 "2023-05-16T18:10:41Z")
Hey, can anyone recommend a wall adapter for ACE pro? Thanks! --- ## [ERROR: Registry editing has been disabled by your administrator](https://forum.qoitech.com/t/error-registry-editing-has-been-disabled-by-your-administrator/466)
**Author:** [@marcinpostek](https://forum.qoitech.com/u/marcinpostek)\ **Replies:** 1\ **Last updated:** [April 12, 2023, 10:44am UTC](https://forum.qoitech.com/t/error-registry-editing-has-been-disabled-by-your-administrator/466 "2023-04-12T10:44:28Z")
Hi, On my corporation laptop, I have access to Windows registers blocked. So when I want to run Otii 3x, I get: “2023-04-11T13:46:03.349Z \[error:renderer\] Error: Error while obtaining machine id: Error: Command failed:… --- ## [Reset password using email](https://forum.qoitech.com/t/reset-password-using-email/465)
**Author:** [@marcin](https://forum.qoitech.com/u/marcin)\ **Replies:** 3\ **Last updated:** [April 12, 2023, 9:04am UTC](https://forum.qoitech.com/t/reset-password-using-email/465 "2023-04-12T09:04:48Z")
Hi, I would like to reset password to my other account connected to my company email. But the only way to do this is to use “username” which I don’t remember. Is there any way to reset password by providing email addr… --- ## [Monitoring power from constant voltage regulator?](https://forum.qoitech.com/t/monitoring-power-from-constant-voltage-regulator/464)
**Author:** [@mike6789](https://forum.qoitech.com/u/mike6789)\ **Replies:** 1\ **Last updated:** [April 4, 2023, 5:58am UTC](https://forum.qoitech.com/t/monitoring-power-from-constant-voltage-regulator/464 "2023-04-04T05:58:04Z")
Hello, For the 0-15V output on the expansion port (not the main power output): For Ace, the 0-15V is a voltage regulator with adjustable voltage that can supply up to 600mA. The regulator can be turned on and off in t… --- ## [Example project](https://forum.qoitech.com/t/example-project/95)
**Author:** [@mslothy](https://forum.qoitech.com/u/mslothy)\ **Replies:** 8\ **Last updated:** [December 5, 2018, 8:01pm UTC](https://forum.qoitech.com/t/example-project/95 "2018-12-05T20:01:50Z")
Hi, one thing the Saleae Logic analyzer does great is that you can install the software and, if you don't have a logic connected, you can get simulated traces so that you can play around and get a feel for the software… --- ## [Release 3.3.2 not working](https://forum.qoitech.com/t/release-3-3-2-not-working/459)
**Author:** [@mandarinai123](https://forum.qoitech.com/u/mandarinai123)\ **Replies:** 2\ **Last updated:** [March 9, 2023, 7:03am UTC](https://forum.qoitech.com/t/release-3-3-2-not-working/459 "2023-03-09T07:03:47Z")
I have a problem with Otii Ace new release 3.3.2. Program doesn’t work. This problem repeats on different computers. I try open program before download a new release, also get nothing. need help :frowning: --- ## [Transaction id mismatch exception](https://forum.qoitech.com/t/transaction-id-mismatch-exception/457)
**Author:** [@chiara](https://forum.qoitech.com/u/chiara)\ **Replies:** 1\ **Last updated:** [January 13, 2023, 1:52pm UTC](https://forum.qoitech.com/t/transaction-id-mismatch-exception/457 "2023-01-13T13:52:16Z")
Hi, I have a Pro + automation license, and I use an Otii Arc with the software at version 3.2.4 on Windows. I wrote a Python script that collects small measures at a periodic rate. Unfortunately, after a while, the API… [Previous page](https://forum.qoitech.com/c/community-support/12.md) [Next page](https://forum.qoitech.com/c/community-support/12.md?page=2)