Categories: Protek 608 Digital Multimeter
Tags: connectivity electronics hardware rs-232 teardown
Posted by: Darian Cabot
Comments:5
Protek 608 RS-232 cable teardown
This post is a continuation of the Protek 608 DMM software project.
Here’s some photos of the Protek 608 RS-232 cable teardown:
Bill of materials
You know a teardown is serious when a BOM is produced! 😛 This may be overkill, but I have plans in future to develop my own transceiver hardware that instead of using RS-232 to connect to a PC, it will use a cheap WiFi module or Bluetooth module.
C1, C2 Capacitor, Tantalum 33 µF, 6.3V, polarosed R1, R2 Resistor (0805) 1 kΩ R3, R4 Resistor (0805) 100 kΩ R5 Resitor (0805) 22 kΩ R6 Resitor (0805) 4.7 MΩ D1 Diode, Switching (SOT-23) KDS184 D2, D6 Diode, Switching (SOT-23) KDS196 D3, D4 Diode, Switching (SOT-23) KDS226 Q1 Transistor, NPN 2N3904 (SOT-23) Q2 Transistor, PNP 2N3906 (SOT-23) Q3 Transistor, PNP 2N3906 (SOT-23) P1 Header, 5-pin, 2.0mm, Right Angle - Molex 89401-0510 http://octopart.com/89401-0510-molex-250559 - Sullins SWR201-NRTN-S05-RL-WH http://octopart.com/swr201-nrtn-s05-rl-wh-sullins-20912684 D5? LED on back?? SMD 14.. (2927)?? Photo-receiver ??
Hardware and software engineer with experience in product development and building automation. Director at Cabot Technologies and Product Manager at NEX Data Management Systems.
5 comments
[…] A teardown of the Protek 608 RS-232 serial cable […]
Very Good brake down
can you call me ay (918) 629-9297 I was the director of electronic at ORU University
we use the protek 608 to Demonstrate to the students i have a ? i think you can answer
Hi Jack,
Best bet is to contact me here in the comments section, or through my contact form. I’ll try and help if I can. Thanks.
I suspect that its 2 IR sensors; one TX one RX…
I dont have a Cable for this Model (I have the 506 & 608); these Protek Meters are some of the Best Multi-meters ever made, IMHO…
Because you have the Cord & Original Breakout board; you likely could rig its Serial Wires to Wifi or Bluetooth unit…
Theres a YouTube video from SerialIO.com w/ the 506 using a Serial to Bluetooth Adapter (BlueSnapAAA)…
If you broke that unit (BlueSnap) down; and hardwired it to the 608 Breakout Board and 3d Printed a new rear housing to mate to the Original Dongle head that fits the Meter; youd have a Nice sleek Bluetooth Adapter…
Because I dont have a cable I have to think of how to create one; maybe using an Arduino kit of some sorts…
There’s an IR LED (transmit) and IR LDR/sensor (receive).
I agree that the Protek 608 is an awesome meter, one of my favs for sure. I recently picked up a Brymen 869S which is now my #1 🙂
Making a Bluetooth or WiFi adapter for the Protek would be an interesting project.
I actually wrote a Java library a while back that decodes all serial comms, it’s on GitHub: https://github.com/dariancabot/Protek608
Porting that across to C or Arduino C++ wouldn’t be too difficult as the decoding was really the hard part.