Arduino Project: HLT volume display using bathroom scales

[Fil]

sounds like my touchscreen brew controller

[Deebee]

I bought a package scale for under the MT. Means i dont have to lift water or full mt to the stand. Great for weighing grain too.

http://www.jula.no/catalog/hjem-og-hush ... kt-821012/

[Fil]

I bought a package scale for under the MT. Means i dont have to lift water or full mt to the stand. Great for weighing grain too.

http://www.jula.no/catalog/hjem-og-hush ... kt-821012/

looks very similar to the proship2 300kg scales i use, the usb connection allows for a degree of automation too ebay auctions an patience means you can pick them up for a bargain price too

[Deebee]

I used mine for a "proper brew"last week.
Calibrated it with fvs filled to certain levels for a theoretical known volume. Worked a treat.
No more humping water and full mash tuns for me!

[Andy]

Right, this project is back on but with a rethink.

I'm going to use a Wii balance board as the scales and communicate with it using an Arduino + bluetooth.

[JabbA]

Cool! I was just thinking about my build yesterday after just about finishing the rest of the Arduino code for my HERMS controller. When I last left it I was having trouble altering the gain on the amplifier chip.

It looks like I may be in a position to get a test brew on soon, it's been far too long!

Cheers,
Jamie

[EccentricDyslexic]

Would love to see this up and working, my automated brewery uses a peristaltic pump to pump water from HLT to mash MT, but it's slow at 300ml per minute. By the time the MT is filled, the temp is lower than strike temp so i have to use the RIMs to raise the temps again. I was toying with the idea of fitting another pump in paralel for £70 which would double the speed of the fill, but it'd stil take 15mins or so.

If i could open a valve and shut it again when a certain amount of weight has been lost out of the HLT then it'd be filled in a minute

Good luck with it Andy!

Steve

Ps did you see the instrucatable at the begining of this thread has been updated as so many people had problems with the INA125P?

[Andy]

OK, update time.

I've now got a Wii balance board talking to an Arduino Uno via Bluetooth and am getting a weight reading

Next step is to rig up the water solenoid I've got to the Uno and have it control the fill level of the HLT.

Code: Select all

Local Bluetooth Address: 00:15:83:D0:FF:9E
Wait For Incoming Connection Request
Class of device: 00 25 04
Incoming Connection Request
Remote Name: Nintendo RVL-WBC-01
Wiimote is connecting - Wii Balance Board
Connection established

Connected to Device: 00:24:F3:B0:75:A3
HID Control Incoming Connection Request
HID Control Successfully Configured
HID Interrupt Incoming Connection Request
HID Channels Established
Checking if a Motion Plus is connected
Extension connected
No Motion Plus was detected
Checking if there is any extension connected
Wii Balance Board connected
Wait For Incoming Connection Request
Reading Wii Balance Board calibration values
Wii Balance Board calibration values read successfully
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.00	0.00	Total Weight: 0.00
Weight: 0.00	0.00	0.08	0.00	Total Weight: 0.08
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.38	0.07	Total Weight: 0.45
Weight: 0.00	0.00	0.69	0.42	Total Weight: 1.11
Weight: 0.00	0.00	0.69	0.42	Total Weight: 1.11
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.00	0.91	0.89	Total Weight: 1.79
Weight: 0.00	0.03	1.22	1.54	Total Weight: 2.79
Weight: 0.00	0.03	1.22	1.54	Total Weight: 2.79
Weight: 0.25	0.22	1.76	2.00	Total Weight: 4.23
Weight: 0.25	0.22	1.76	2.00	Total Weight: 4.23
Weight: 0.25	0.22	1.76	2.00	Total Weight: 4.23
Weight: 0.25	0.22	1.76	2.00	Total Weight: 4.23
Weight: 0.40	0.31	2.19	2.47	Total Weight: 5.36
Weight: 0.40	0.31	2.19	2.47	Total Weight: 5.36
Weight: 0.40	0.31	2.19	2.47	Total Weight: 5.36
Weight: 0.40	0.31	2.19	2.47	Total Weight: 5.36
Weight: 0.55	0.42	2.62	2.83	Total Weight: 6.42
Weight: 0.55	0.42	2.62	2.83	Total Weight: 6.42
Weight: 0.73	0.59	2.96	3.16	Total Weight: 7.45
Weight: 0.73	0.59	2.96	3.16	Total Weight: 7.45
Weight: 0.73	0.59	2.96	3.16	Total Weight: 7.45

[EccentricDyslexic]

Fab! Look forward to the instructable;-)

Steve