Reef-Pi Controllers: New all-in-one with power bar, and the original Pico

[rushbattle]

I can hardly wait to begin testing this board. Is anyone else testing with a pi3?

He specified pi zero so that’s what I got. A day before I heard about the new 5GHz board. Would have gotten those for sure.

 

[DirtDiggler2823]

He specified pi zero so that’s what I got. A day before I heard about the new 5GHz board. Would have gotten those for sure.

I already had a pi3 from my retropi

 

[rushbattle]

For those building these, don’t forget a male 2x20 header to solder to the pi. I didn’t get them and now I have to wait until they get here.

 

[rushbattle]

I already had a pi3 from my retropi

If you use his enclosure you have to use a pi zero. But I’m pretty sure you could use a pi3 if you don’t.

Edit for posterity: If you want to use his standoffs and direct mount you need a pi zero. If you use the extender shown below you will have to do more work to get it mounted inside the enclosure. I am sure as the design evolves these things won't be true any longer but I wanted to be clear here for now.

 

[theatrus]

If you use his enclosure you have to use a pi zero. But I’m pretty sure you could use a pi3 if you don’t.

Pi 3 should work fine when used with a M/F ribbon extender.

Will fully test this configuration shortly.

 

[DirtDiggler2823]

If you use his enclosure you have to use a pi zero. But I’m pretty sure you could use a pi3 if you don’t.

Right. I've tasked myself with figuring out how to do this with the bigger pi machines. If they ever include USB support, folks will either need to use a hub, or a bigger pi.

 

[theatrus]

Since we are on revision D and my load switch is now not backwards, I've added the firmware to the Revision D boards for the watchdog function.

Command docs are here:
https://github.com/blueacro/reefpi-firmware-pico-smc#i2c-commands

This functionality isn't in Reef-Pi proper yet, but could be supported as a form of liveness check. In the mean time, you can run it from a cron task or other system task to at least detect a fully hung Raspberry Pi.

All revision D boards will have this firmware. You can send these commands to a Revision C board and they will be ignored.

 

[theatrus]

Confirmed functional using the extender cable. The following orientation works correctly as an example of pin mapping.

 

[DirtDiggler2823]

Confirmed functional using the extender cable. The following orientation works correctly as an example of pin mapping.

Sweet!

 

[pdisner]

Yes. The probe has it's own DPIO pins

Ok everyone. I’m hitting this temp sensor problem again. Since I’ve last posted, I’ve checked my wiring using a simple arduino sketch using one wire. I’m getting great readings from that. With reef-pi it’s not working.

Tje above pic shows that there’s no option for the temp probe.

 

[theatrus]

Ok everyone. I’m hitting this temp sensor problem again. Since I’ve last posted, I’ve checked my wiring using a simple arduino sketch using one wire. I’m getting great readings from that. With reef-pi it’s not working.

Tje above pic shows that there’s no option for the temp probe.

Sanity check some things:

- Is the 1wire support turned on in /boot/config.txt?
- Do you read the following voltages on the probe wires when powered:
- Red wire is 3.3V
- Yellow wire (data) is 3.3V
- Black wire is the same as Pi GND (0V)

Does your multi-meter have a min-max mode? It can be used to detect if the Pi is trying to signal data on the 1wire data line - it should read a lower voltage (may not get to 0v).

 

[pdisner]

Another rabbit hole, haha! This is great learning experience, now I need to learn about multimeters. I know that mine is the very cheapest you can get. I only bought this to read general voltages and will need to watch some you tube.
Thanks for taking your time to look at my wiring. I figured it out! Somehow the 1-wire was uncheck and I thought in had checked that. It may have. Been a combo of a couple things. I took out my T cobbler and hooked straight up to the Pi, using my multi meter to check connections was a great suggestion and not sure why I didn’t think of. Anyhow, I’ve manage to get the probe to reason and control a single relay used to simulate a heater on/off. It worked out perfectly. The simple stuf can totally **** u down! Thanks everyone.

PROGRESS!!

 

[Trickman2]

Confirmed functional using the extender cable. The following orientation works correctly as an example of pin mapping.

Awesome my Rev-D board should be here today.

 

[Trickman2]

Confirmed functional using the extender cable. The following orientation works correctly as an example of pin mapping.

Awesome my board is coming in today.

 

[DirtDiggler2823]

My board is out for delivery and I have a bunch of jumpers I'll use to cable it until I get the ribbon cable.

 

[Trickman2]

My board is out for delivery and I have a bunch of jumpers I'll use to cable it until I get the ribbon cable.

Do we have a pin configuration? I am assuming we are not using all the pins?

 

[DirtDiggler2823]

Do we have a pin configuration? I am assuming we are not using all the pins?

I'm just gonna go 1 to 1 and see how that works.

 

[theatrus]

Do we have a pin configuration? I am assuming we are not using all the pins?

All the pins aren’t used, but most are.

Page two has the list
https://github.com/blueacro/reefpi-pico/blob/master/reefpi_pico_v2.pdf

 

[theatrus]

Awesome my board is coming in today.

Before connecting, I'd just sanity check that 5V is reaching the pin header position on the Pi you expect. Safety first!

 

[DirtDiggler2823]

Board came in yesterday. Very clean, I like it. I'll wire it in tomorrow to see how things work.