sigrok - User contributions [en]

HYELEC MS8236

2015-10-15T21:03:36Z

MaDMaLKaV:

{{Infobox multimeter
| image = [[File:Sigrok_logo_no_text_transparent_512.png|180px]]
| name = HYELEC MS8236
| status = planned
| source_code_dir =
| counts = 6000
| categories = CAT III (1000V) / CAT IV (600V)
| connectivity = USB
| measurements = voltage, resistance, diode, capacitance, frequency, current, hFE, temperature
| features = autorange, true-rms, data hold, delay hold, min/max, relative, bargraph, backlight
| website = [http://www.hy-elec.com/En/Default.aspx hy-elec.com]
}}

The '''HYELEC MS8236''' is a 6000 counts, CAT III (1000V) / CAT IV (600V) handheld digital multimeter with USB connectivity.

See [[HYELEC MS8236/Info]] for more details (such as '''lsusb -v''' output) about the device.

== Hardware ==

* '''8-bit MCU with 4x40 LCD driver and 18-bit ADC''': [http://www.hycontek.com/e-page2-HY11P.html Hycontek HY11P14] ([http://www.hycontek.com/attachments/MSP/DS-HY11P14_EN.pdf datasheet], [http://www.hycontek.com/attachments/MSP/UG-HY11S14_EN.pdf user's guide])
* '''USB to serial IC''': [http://www.wch.cn/product/CH340.html WCN CH340G] ([http://www.wch.cn/downfile/79 datasheet])

== Photos ==

'''Multimeter''':

<gallery>
File:Hyelec ms8236 pcb top.jpg|PCB, top
File:Hyelec ms8236 pcb bottom.jpg|PCB, bottom
File:Hyelec ms8236 interface.jpg|USB interface
</gallery>

'''USB cable:'''

Standard USB to miniUSB.

== Protocol ==

TODO.

The device's LCD segments are layed out as follows:

{{7seg|G|C|F|B|A|E|D}}

To the left of each LCD digit there is another segment which represents a dot / decimal point (DP).

An LCD segment is represented in the protocol as follows:

{| border="0" style="font-size: smaller" class="alternategrey sigroktable"
|-
! Bit 7 !! Bit 6 !! Bit 5 !! Bit 4 !! Bit 3 !! Bit 2 !! Bit 1 !! Bit 0
|-
| DP || A || B || C || D || E || F || G
|}

'''Example''': In the protocol a byte of '''0x3F''' ('''0 0111111''') represents the digit '''9''' on the LCD, where the decimal point is '''not''' displayed (bit 7 is not set). All other bits except for bit 6 (segment A, see above) are set, i.e. the respective LCD segments are displayed.

The meter have an NCV icon but the function is not documented on the manual, I wasn't able to trigger it, it's probably not implemented.
Everything with a (?) after is doubtful or impossible to confirm.

Protocol consists of 22 bytes:

Bytes 1 to 6: Always AA 55 52 24 01 10 . Probably some kind of header to test if transmission is ok, as the protocol doesn't have any kind of CRC.

Bytes 7 to 10: Next four bits are the big LCD numbers, from right to left, in the format already specified by uwe_ on the wiki.

Byte 11: 00000000 -> Diode icon
|||||||---> AC
||||||----> DC
|||||-----> -
||||------> - (yeah, both bits set to 1 when displaying "minus")
|||-------> "Progess bar cue" -the bar with the 0 - 10 - 20 - ...
||--------> Continuity tester "sound" icon
|---------> Battery

Bytes 12 to 18: that "progress bar on the top". Dunno what's its use, probably we can ignore it

Byte 19: 00000000 -> More progress bar thingy
|||||||---> More progress bar thingy
||||||----> More progress bar thingy
|||||-----> More progress bar thingy
||||------> Wait... (?) (Never shown on the PC but as it is a LCD protocol probably goes mapped here internally even if it never get transmited to the PC)
|||-------> Auto
||--------> HOLD (?) (USB transmission seems to stop when Hold is activated)
|---------> REL

Byte 20: 00000000 -> USB Icon (Of course, always on)
|||||||---> MAX
||||||----> - (between MAX and MIN)
|||||-----> MIN
||||------> N/A (?)
|||-------> %
||--------> hFE
|---------> N/A (?)

Byte 21: 00000000 -> C
|||||||---> F (temp)
||||||----> N/A (?)
|||||-----> N/A (?)
||||------> m (in the Farads line)
|||-------> u (in the Farads line)
||--------> n (in the Farads line)
|---------> F (Farads)

Byte 22: 00000000 -> u (in the A line)
|||||||---> m (in the A line)
||||||----> A
|||||-----> V (in diode meter mode)
||||------> M (in the Ohms line)
|||-------> k (in the Ohms line)
||--------> Ohms
|---------> Hz

== Resources ==

* [http://de.aliexpress.com/wholesale?SearchText=hyelec+ms8236 Random aliexpress.com sellers]
* [https://www.youtube.com/watch?v=ATL0LDTqyQQ Disassembly video]

[[Category:Device]]
[[Category:Multimeter]]
[[Category:Planned]]

HYELEC MS8236

2015-10-15T21:03:05Z

MaDMaLKaV:

{{Infobox multimeter
| image = [[File:Sigrok_logo_no_text_transparent_512.png|180px]]
| name = HYELEC MS8236
| status = planned
| source_code_dir =
| counts = 6000
| categories = CAT III (1000V) / CAT IV (600V)
| connectivity = USB
| measurements = voltage, resistance, diode, capacitance, frequency, current, hFE, temperature
| features = autorange, true-rms, data hold, delay hold, min/max, relative, bargraph, backlight
| website = [http://www.hy-elec.com/En/Default.aspx hy-elec.com]
}}

The '''HYELEC MS8236''' is a 6000 counts, CAT III (1000V) / CAT IV (600V) handheld digital multimeter with USB connectivity.

See [[HYELEC MS8236/Info]] for more details (such as '''lsusb -v''' output) about the device.

== Hardware ==

* '''8-bit MCU with 4x40 LCD driver and 18-bit ADC''': [http://www.hycontek.com/e-page2-HY11P.html Hycontek HY11P14] ([http://www.hycontek.com/attachments/MSP/DS-HY11P14_EN.pdf datasheet], [http://www.hycontek.com/attachments/MSP/UG-HY11S14_EN.pdf user's guide])
* '''USB to serial IC''': [http://www.wch.cn/product/CH340.html WCN CH340G] ([http://www.wch.cn/downfile/79 datasheet])

== Photos ==

'''Multimeter''':

<gallery>
File:Hyelec ms8236 pcb top.jpg|PCB, top
File:Hyelec ms8236 pcb bottom.jpg|PCB, bottom
File:Hyelec ms8236 interface.jpg|USB interface
</gallery>

'''USB cable:'''

Standard USB to miniUSB.

== Protocol ==

TODO.

The device's LCD segments are layed out as follows:

{{7seg|G|C|F|B|A|E|D}}

To the left of each LCD digit there is another segment which represents a dot / decimal point (DP).

An LCD segment is represented in the protocol as follows:

{| border="0" style="font-size: smaller" class="alternategrey sigroktable"
|-
! Bit 7 !! Bit 6 !! Bit 5 !! Bit 4 !! Bit 3 !! Bit 2 !! Bit 1 !! Bit 0
|-
| DP || A || B || C || D || E || F || G
|}

'''Example''': In the protocol a byte of '''0x3F''' ('''0 0111111''') represents the digit '''9''' on the LCD, where the decimal point is '''not''' displayed (bit 7 is not set). All other bits except for bit 6 (segment A, see above) are set, i.e. the respective LCD segments are displayed.

The meter have an NCV icon but the function is not documented on the manual, I wasn't able to trigger it, it's probably not implemented.
Everything with a (?) after is doubtful or impossible to confirm.

Protocol consists of 22 bytes:

Bytes 1 to 6: Always AA 55 52 24 01 10 . Probably some kind of header to test if transmission is ok, as the protocol doesn't have any kind of CRC.

Bytes 7 to 10: Next four bits are the big LCD numbers, from right to left, in the format already specified by uwe_ on the wiki.

<nowiki>Byte 11: 00000000 -> Diode icon
|||||||---> AC
||||||----> DC
|||||-----> -
||||------> - (yeah, both bits set to 1 when displaying "minus")
|||-------> "Progess bar cue" -the bar with the 0 - 10 - 20 - ...
||--------> Continuity tester "sound" icon
|---------> Battery

Bytes 12 to 18: that "progress bar on the top". Dunno what's its use, probably we can ignore it

Byte 19: 00000000 -> More progress bar thingy
|||||||---> More progress bar thingy
||||||----> More progress bar thingy
|||||-----> More progress bar thingy
||||------> Wait... (?) (Never shown on the PC but as it is a LCD protocol probably goes mapped here internally even if it never get transmited to the PC)
|||-------> Auto
||--------> HOLD (?) (USB transmission seems to stop when Hold is activated)
|---------> REL

Byte 20: 00000000 -> USB Icon (Of course, always on)
|||||||---> MAX
||||||----> - (between MAX and MIN)
|||||-----> MIN
||||------> N/A (?)
|||-------> %
||--------> hFE
|---------> N/A (?)

Byte 21: 00000000 -> C
|||||||---> F (temp)
||||||----> N/A (?)
|||||-----> N/A (?)
||||------> m (in the Farads line)
|||-------> u (in the Farads line)
||--------> n (in the Farads line)
|---------> F (Farads)

Byte 22: 00000000 -> u (in the A line)
|||||||---> m (in the A line)
||||||----> A
|||||-----> V (in diode meter mode)
||||------> M (in the Ohms line)
|||-------> k (in the Ohms line)
||--------> Ohms
|---------> Hz

</nowiki>
== Resources ==

* [http://de.aliexpress.com/wholesale?SearchText=hyelec+ms8236 Random aliexpress.com sellers]
* [https://www.youtube.com/watch?v=ATL0LDTqyQQ Disassembly video]

[[Category:Device]]
[[Category:Multimeter]]
[[Category:Planned]]

HYELEC MS8236

2015-10-15T21:02:19Z

MaDMaLKaV:

HYELEC MS8236

2015-09-22T11:27:51Z

MaDMaLKaV: Created page with "{{Infobox multimeter | image = 180px | name = HYELEC MS8236 | status = planned | source_code_dir = | counts..."

{{Infobox multimeter
| image = [[File:HYELEC_MS8236.png|180px]]
| name = HYELEC MS8236
| status = planned
| source_code_dir =
| counts = 6000
| categories = CAT III (1000V)
| connectivity = USB
| measurements = voltage, resistance, diode, capacitance, frequency, current, hFE, temperature
| features = autorange, true-rms, data hold, delay hold, min/max, relative, bargraph, backlight
| website =
}}

== Hardware ==

Main IC is a HY11P14 by Hycontek, USB to Serial chip is a CH340G

== Photos ==

'''Multimeter''':

<gallery>
</gallery>
TODO.

'''USB cable:'''

Standard USB to miniUSB.

== Protocol ==

TODO.

== Resources ==

* [http://www.hycontek.com/attachments/MSP/DS-HY11P14_EN.pdf MCU Datasheet]
* [http://www.hycontek.com/attachments/MSP/UG-HY11S14_EN.pdf MCU User Guide]
* [https://www.youtube.com/watch?v=ATL0LDTqyQQ Disassembly video]

[[Category:Device]]
[[Category:Multimeter]]
[[Category:Planned]]