Difference between revisions of "Voltcraft VC-820"
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== Photos == | == Photos == | ||
'''Multimeter''': | |||
<gallery> | <gallery> | ||
File:Voltcraft vc820 device.jpg | |||
File:Voltcraft vc820 device back1.jpg | |||
File:Voltcraft vc820 device back2.jpg | |||
File:Voltcraft vc820 battery1.jpg | |||
File:Voltcraft vc820 battery2.jpg | |||
File:Voltcraft vc820 device open1.jpg | |||
File:Voltcraft vc820 device open2.jpg | |||
File:Voltcraft vc820 device open3.jpg | |||
File:Voltcraft vc820 device open4.jpg | |||
File:Voltcraft vc820 shielding.jpg | |||
File:Voltcraft vc820 ir part.jpg | |||
File:Voltcraft vc820 ir pcb bottom.jpg | |||
File:Voltcraft vc820 ir pcb top.jpg | |||
File:Voltcraft vc820 pcb front with lcd.jpg | |||
File:Voltcraft vc820 pcb back.jpg | |||
File:Voltcraft vc820 pcb front top.jpg | |||
File:Voltcraft vc820 pcb light1.jpg | |||
File:Voltcraft vc820 pcb light2.jpg | |||
File:Voltcraft vc820 fs9721 lp3.jpg | |||
File:Voltcraft vc820 crystal.jpg | |||
File:Voltcraft vc820 lcd front.jpg | |||
File:Voltcraft vc820 lcd back.jpg | |||
File:Voltcraft vc820 lcd.jpg|<small>LCD</small> | File:Voltcraft vc820 lcd.jpg|<small>LCD</small> | ||
</gallery> | </gallery> | ||
'''RS232 cable:''' | |||
See [[Voltcraft_VC-840#Photos]]. | |||
'''RS232 cable:''' | |||
TODO. | |||
== Protocol == | == Protocol == | ||
Revision as of 15:19, 1 July 2012
The Voltcraft VC-820 is a 4000 counts, CAT III (1000V) / CAT IV (600V) handheld digital multimeter with RS232 or USB connectivity.
See Voltcraft VC-820/Info for more details (such as lsusb -vvv output) about the device.
Hardware
TODO.
Photos
Multimeter:
LCD
RS232 cable:
RS232 cable:
TODO.
Protocol
The connection to the PC is done using a cable which converts the optical signal (IR) on the multimeter to RS232.
The serial connection uses 2400 baud (hardcoded, cannot be changed) with 8n1 settings. The multimeter transmits 14-byte data packets periodically, the host can not send any commands whatsoever, only read the transmitted data.
A short protocol description is available from Voltcraft/Conrad.
Resources
TODO.