Difference between revisions of "ATORCH J7-c"

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The '''ATORCH J7-c''' is a USB load meter which can measure various properties for USB devices including their voltage, current, power, resistance, capacity, temperature, data line voltage, and charging mode. Communicates to the host by means of serial over bluetooth.
{{Infobox energy meter
{{Infobox energy meter
| image              = [[File:ATORCH_J7-c.jpg|180px]]
| image              = [[File:ATORCH_J7-c.jpg|180px]]
| name                = ATORCH J7-c
| name                = ATORCH J7-c
| status              = planned
| status              = supported
| source_code_dir    = atorch
| connectivity        = serial over Bluetooth, BLE
| connectivity        = serial over Bluetooth, BLE
| measurements        = voltage, current, power, energy, voltage over USB data lines
| measurements        = voltage, current, power, energy, voltage over USB data lines
| features            = measures USB devices; color display
| features            = measures USB devices; color display
| website            = [http://atorch.aliexpress.com/ atorch.aliexpress.com]
| website            = [http://en.atorch.cn/ProDetail.aspx?ProID=4 en.atorch.cn]
}}
}}


== What is it? ==
== Hardware ==


The ATORCH J7-c is a USB load meter which can measure various properties for USB devices including their voltage, amperage, wattage, resistance, capacity, temperature, data line voltage, and charging mode.
It features the following connectors :  
It features the following connectors :  
* USB-A male ( USB 2.0 only )
* USB-A male ( USB 2.0 only )
Line 19: Line 21:
* USB-microB female
* USB-microB female


== Protocol ==
A '''CH573F MCU''' is responsible for performing all the measurements and managing the user interface.
 
The device communicates through serial-over-Bluetooth (RFCOMM), appearing under the UC96_SPP name, and BLE, under the UC96_BLE name.
The manufacturer provides an app named "E_Test" for Android and iOS, but no protocol documentation, although it appears that the protocol has been fully reverse-engineered [https://github.com/syssi/esphome-atorch-dl24/blob/main/docs/protocol-design.md].
The same protocol is used both on the BLE and Bluetooth link.
 
== Hardware ==
 
A CH573F MCU is responsible for performing all the measurements and managing the user interface.


A small SOIC-8 IC ( marking BP0D608-68A2) handles the Bluetooth communication ( both RFCOMM and BLE ).
A small SOIC-8 IC (marking BP0D608-68A2) handles the Bluetooth communication (both RFCOMM and BLE). Might be [https://www.zh-jieli.com/upload/202204/AC63XN-datasheet/AC632N%E8%A7%84%E6%A0%BC%E4%B9%A6/datasheet/AC6328B_Datasheet_V1.0.pdf AC6328B]


== Board pictures ==
== Pictures ==


<gallery>
<gallery>
Line 38: Line 32:
</gallery>
</gallery>


== Links ==
== Example use ==
 
<small>
  $ sigrok-cli -d atorch:conn=COM5 --continuous
  $ sigrok-cli -d atorch:conn=bt/ac6328/12-34-56-78-9a-bc --show
</small>
 
== Protocol ==
 
The device communicates through serial-over-Bluetooth (RFCOMM), appearing under the UC96_SPP name, and BLE, under the UC96_BLE name.
The same protocol is used both on the BLE and Bluetooth link.
 
The manufacturer provides an app named "E_Test" for Android and iOS, but no protocol documentation, although it appears that the protocol has been fully reverse-engineered [https://github.com/syssi/esphome-atorch-dl24/blob/main/docs/protocol-design.md].
 
The RFCOMM transport uses channel number 2.
The BLE transport can be made to work using the following parameters : handle_rx = 0x000C, handle_tx = 0x000F, handle_cccd = 0x000D, value_cccd = 0x0001
 
== Resources ==


* [http://atorch.aliexpress.com/ Aliexpress store]
* vendor software in the [http://atorch.aliexpress.com/ Aliexpress store]
* [https://github.com/syssi/esphome-atorch-dl24/blob/main/docs/protocol-design.md protocol-design]
* github syssi esphome-atorch-dl24 [https://github.com/syssi/esphome-atorch-dl24/blob/main/docs/protocol-design.md protocol-design] text document


[[Category:Device]]
[[Category:Device]]
[[Category:Energy meter]]
[[Category:Energy meter]]
[[Category:Unsupported]]
[[Category:Supported]]

Latest revision as of 12:29, 7 May 2023

The ATORCH J7-c is a USB load meter which can measure various properties for USB devices including their voltage, current, power, resistance, capacity, temperature, data line voltage, and charging mode. Communicates to the host by means of serial over bluetooth.

ATORCH J7-c
ATORCH J7-c.jpg
Status supported
Source code atorch
Connectivity serial over Bluetooth, BLE
Measurements voltage, current, power, energy, voltage over USB data lines
Features measures USB devices; color display
Website en.atorch.cn

Hardware

It features the following connectors :

  • USB-A male ( USB 2.0 only )
  • USB-A female ( USB 2.0 only)
  • USB-C male
  • USB-C female
  • USB-microB female

A CH573F MCU is responsible for performing all the measurements and managing the user interface.

A small SOIC-8 IC (marking BP0D608-68A2) handles the Bluetooth communication (both RFCOMM and BLE). Might be AC6328B

Pictures

  • Top side of the board

  • Bottom side of the board

Example use

 $ sigrok-cli -d atorch:conn=COM5 --continuous
 $ sigrok-cli -d atorch:conn=bt/ac6328/12-34-56-78-9a-bc --show

Protocol

The device communicates through serial-over-Bluetooth (RFCOMM), appearing under the UC96_SPP name, and BLE, under the UC96_BLE name. The same protocol is used both on the BLE and Bluetooth link.

The manufacturer provides an app named "E_Test" for Android and iOS, but no protocol documentation, although it appears that the protocol has been fully reverse-engineered [1].

The RFCOMM transport uses channel number 2. The BLE transport can be made to work using the following parameters : handle_rx = 0x000C, handle_tx = 0x000F, handle_cccd = 0x000D, value_cccd = 0x0001

Resources

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