Difference between revisions of "Victor 70C"
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File:Victor 70C TC7660E.jpg|<small>Microchip TC7660E</small> | File:Victor 70C TC7660E.jpg|<small>Microchip TC7660E</small> | ||
File:Victor 70C 27L2C.jpg|<small>TI 27L2C</small> | File:Victor 70C 27L2C.jpg|<small>TI 27L2C</small> | ||
File:Victor 70C LCD.jpg|<small>LCD</small> | |||
</gallery> | </gallery> | ||
Revision as of 10:02, 18 August 2012
The Victor 70C is a 4000 counts, CAT II handheld digital multimeter with USB connectivity. It is also sold as the EZA EZ-735
See Victor 70C/Info for more details (such as lsusb -vvv output) about the device.
Hardware
- Fortune Semiconductor FS9922-DMM4 multimeter chip
- NXP HEF4066BT quadruple bilateral switches
- Microchip TC7660E charge pump DC-to-DC voltage converter
- Texas Instruments 27L2C precision dual op-amp
- Unknown USB interface chip (HID)
Photos
Device, front
PCB, front
PCB, bottom
DMM/LCD chip
NXP HEF4066BT
Microchip TC7660E
TI 27L2C
LCD
Protocol
14 bytes polled, likely based on the LCD segments.
Resources
- RoastLogger: Input Devices (Victor Victor 86B/86C support)
- Dave Ansell Science Communication: Victor 86C multimeter USB encoding for linux (PHP)
- victor86b-usb-interface: USB interface for Victor 86B Digital Multimeter using HIDAPI (see also here)
- Sparkfun: Victor 70C (manual, software)
- Github: victor70c (HIDAPI)
- Random review / photos