Anyone interested in 4-20mA feather wing?
2 Channels 4-20mA (will power the sensor)
2 Channels 0-20V
3 Digital Outputs (open collector)
4 Digital Inputs 24V
24VDC supply on board for external sensors.
3V0 regulator to power from VUSB if wanted.
8x LEDs individually controlled.
Ability to connect Analogs and Digital directly to Feather processor rather than through I2C by fitting 0R.
Looks nice. What voltage level powers the entire system? Is there provision to power the system from an industrial power supply (say 12/24V)?
(The schematic is too low resolution to read).
Hi cbrake
The PCB is powered from the 3v3 from the feather, or VUSB.
VUSB is preferred so you don’t load PSU on the Boron/Argon/Xenon etc. The two power supply inputs are diode OR’d so it will select the PSU input with the highest voltage.
Maximum input is 12V from the datasheets.
PCB 3V0 is supplied via MIC5219 (Max input of 12V)
PCB 24V is supplied via LM27313 (Max input of 14V)
We have a base board that will accept a 24VDC/solar input and will provide the VUSB with a battery backed 8V4 for powering the Feather modules.
Hi marshall,
Looks great! What was it designed for? What’s your use case?
Do you mind uploading a higher resolution schematic? It’s to low res to read.
Thanks!
Hi Marshall, this looks super, is it possible that you could share the files or a schematic diagram in higher resolution? Please 
@marshall, looks pretty awesome! Would there be a way to power down the 24V power to the sensor for low power mode? I have used this power supply in the past which has an enable, but I did not know what the low power characteristics of your design looked like.
Also, what about throwing a ADS1115 precision ADC and a TMP36 temp. sensor giving you the total package.
Lastly, what is the minimum input for your solar input? Most of the solar projects I have seen use a 6V panel.
Do you have a rough guess on cost?
Thanks!
I would be interested in buying this. Is low quantity OK (like 2 or 3)? Is there an ETA?
/s/ Martin
Yes they are available now.
Great. How do I order? (Sorry, but could not find a link above, and google didn’t turn up anything obvious.)
@marshall (Sorry if about the repeat.) I would be interested in purchasing a couple of these 4-20mA Featherwings. I was unable to find a link or reference. Could you direct me to a site? Thanks.
/s/ Martin
Sorry for the delay, in responding
If you are able to message me, I can find out where you live and get a couple to you.
I haven’t got a flash website (or any website) to sell this stuff, we normally use it for our own purposes.
@meshferg, you should now be able to send PMs.
I am interested. How to order?
Hi.
How can I order the Featherwing boards? We are looking at using it with our own cellular (NBIoT, LTE-M) IoT board, compatible with the Fatherwing connector.
Hi hjfosse
Please check out our website www.opito.io/shop
We have a range of cool featherwings there.
I’ve only just set the shop up since @meshferg enquired, so it’s not ready for ordering online, but it has the link to our sales email. (prices are placeholders at the moment)
We have the parts in stock.
Regards
Marshall
Thanks. I will have a look.
Hans
Hello. Is it possible to stack these using the I2C?
–
Ole
You can electrically “stack” them. You would have to change the addressing of the I2C devices.
Physically stacking may prove to be more difficult as it has a connector on the top, I suppose you could remove it and solder it to a cable loom, if you wanted to lower the profile.
