web-u2
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web-u2 [2019/09/09 09:00] – fix overview kingkevin | web-u2 [2019/09/09 10:56] – add WITRN U2 V2.0 kingkevin | ||
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The U2 is a USB power meter and tester. | The U2 is a USB power meter and tester. | ||
+ | |||
+ | ===== Overview ===== | ||
+ | |||
+ | ==== Features ==== | ||
It is full of features and makes it the most complete USB power meter I known of: | It is full of features and makes it the most complete USB power meter I known of: | ||
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* large (1.77 in / 4.5 cm) clear (can use large fonts) LCD screen (160*128 pixels) | * large (1.77 in / 4.5 cm) clear (can use large fonts) LCD screen (160*128 pixels) | ||
* can detect charger compliance/ | * can detect charger compliance/ | ||
- | * external power input: to not affect the current measurement, | + | * external power input: to not affect the current measurement, |
* computer interface to read the measured values: USB HIB (micro-USB port which also can externally power the device), and Bluetooth (U2p version) | * computer interface to read the measured values: USB HIB (micro-USB port which also can externally power the device), and Bluetooth (U2p version) | ||
+ | ==== Resources ==== | ||
+ | |||
+ | The manufacturer is called **WITRN**. | ||
+ | The device was first called **WEB-U2**, but now they registered the trademark/ | ||
+ | |||
+ | You can buy the [[https:// | ||
+ | The software also points to the probably authorized re-seller [[https:// | ||
+ | The manual warms about the [[https:// | ||
+ | |||
+ | The [[http:// | ||
+ | It only point to the user guide and software (with broken link).\\ | ||
+ | Instead they recommend to follow the QQ group 313755927. | ||
+ | |||
+ | Here links I could gather to get the latest version of: | ||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | * [[http:// | ||
+ | |||
+ | There is also this thorough [[https:// | ||
===== Hardware ===== | ===== Hardware ===== | ||
- | There are several | + | There are several versions of the hardware. |
- | I will us the names I can read on the device itself to identify them. | + | |
- | ==== WEB-U2 ==== | + | ==== WITRN U2 104083 |
This is the first device I bought from the [[https:// | This is the first device I bought from the [[https:// | ||
+ | |||
+ | {{: | ||
+ | {{: | ||
+ | {{: | ||
The original manufacturer blocked this device. | The original manufacturer blocked this device. | ||
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Software version 4.0 or later also do not work with this device. You need to use version 3.0.\\ | Software version 4.0 or later also do not work with this device. You need to use version 3.0.\\ | ||
This device can still be used to measure voltage and current, but since there is no update anymore it will not be able to be used to detect charger profiles. | This device can still be used to measure voltage and current, but since there is no update anymore it will not be able to be used to detect charger profiles. | ||
+ | |||
+ | I read out the FRAM (where the settings are stored) but did not find the serial number in there. | ||
+ | I also cleared it to confirm the serial is not stored in the FRAM, but in the firmware. | ||
+ | Sadly the firmware is read protected. | ||
+ | |||
+ | There is also a footprint for an Bluetooth adapter behind the screen, but it was not placed yet (the software was probably not ready). | ||
+ | |||
+ | {{: | ||
+ | |||
+ | ==== WITRN U2 V2.0 ==== | ||
+ | |||
+ | Because the clone was bricked, I got a genuine replacement. | ||
+ | |||
+ | {{: | ||
+ | {{: | ||
+ | {{: | ||
+ | |||
+ | A Bluetooth module could be placed on the front side of the bottom board. | ||
+ | The front board could also be light bz LEDs from the back side. | ||
+ | |||
+ | {{: | ||
+ | {{: | ||
===== Software ===== | ===== Software ===== |
web-u2.txt · Last modified: 2024/01/07 17:49 by 127.0.0.1