Wire external 7 digit display

[oakbarn]

I have read the Wiki and I think I understand. My question is that I want some conformation before I destroy my BCS 462 or 7 Digit display

It says wire Pin 1 to Exp 1 , Pin 2 to Exp 0. Pin 3 is not used Pin 4 to 12 vdc (I would assume the + terminal) and pin 5 to GND

I have attached two diagrams.

One with only one 7 Digit display and one with 4 displays.

There are also two IC connectors on the back of the 7 digits display. when looking at it, I assume the one on the left is the one to use. I cannot see anything to guide me.

How do you change the address. It came in a box with no instructions from OCCS.

[oakbarn]

I found the manual on the OCCS web site and it has cleared up most of what I need so disregard as the above for the four displays is wrong. Looks like you daisy chain them. The Wiki could be a little clearer. No need for a response.

[oakbarn]

What lead to the confusion is the link on the Wiki is wrong. it is https://www.oscsys.com/sites/default/fi ... Manual.pdf

[Pilzner]

When changing the address on the display.....what are you supposed to select?

it says 0x2a......but I can select 2a.....not 0x2a

In hex 0x2a is 42.....but that does not work either.

What am I missing?

[JonW]

2a = 2A = 0x2A = 0x2A

You just need to have each display on it's own address. Use 2A, 2B, 2C and 2D.

[Pilzner]

Jon,

I have my BCS 460 back, flashed with latest v3.7.1.
My 7 seg is all hooked up. (12v to power supply +, GND to - of power supply, SDA to Exp1, SCL to Exp0)
Debug led is flashing, power led on.
I double checked the connections to EXT1 and EXT0
address on 7 seg is set to 2A
BCS settings has display 0 enabled and set to Temp 1
and.....

Nothing

Display is totally blank after initial startup

What am I doing wrong??

[brahn]

Did you connect the BCS ground to the GND/- of the 12v power supply?

[Pilzner]

Nope.....just tried it and it works !!
Thanks
Now that it works.....the little voltage regulator on the board (I think it's that) gets very hot.....is that normal?

[JonW]

Mine get crazy hot also. I used to worry about it, but they've been running for about 2 years now, so I'm not concerned.

[brahn]

Yup, crazy hot!