I have not used SPI, but according to this post, it is not reliable.
Posts made by mark titley
-
RE: MCP3008 SPI Addressing and 0x00 returned valuesposted in Omega Talk
-
RE: git error - ca-certificates.crt mbedTLS missingposted in Omega Talk
@Bogdan-Cimpeanu that link is for old docs, the docs for Onion2 is https://docs.onion.io/omega2-docs/installing-and-using-git.html which has the steps described.
I know it is confusing that they having 2 sets of documents.
-
RE: PEXPECT in pythonposted in Omega Talk
I don't have my Omega to hand, but I found this that might help
But thinking about the limited storage you might want to remove python 2.x if you are not going to use it and that will stop pip installing to python 2.x
Mark
-
RE: [RESOLVED] Cannot connect to Omega when using battery dockposted in Omega Talk
HI,
The Battery dock does not have a serial to USB chip so you are unable to connect it to a PC for communications.
-
ubus helpposted in Omega Talk
HI,
I have the cloud in and working.
I have managed to set the onion LED to a heart beat and the RGB led to different colours. This I found using the tutorial Part1 Ubus Intro and looking at the github. But I can't get the OLED to display any text.
What I have used is
"command":"write","option":"hello","params":""
the output is
{
"status": "failure",
"error": "invalid command"
}What I am doing wrong?
-
RE: Issue with GPIO 12 ?posted in Omega Talk
Looking at the data sheet GPIO12 is also used as a reset, so that might explain why it does not react as you expect.

-
RE: On/off switchesposted in Omega Talk
This is the link to the switches. link text
As I said, I did not find these so can't take the credit.
-
On/off switchesposted in Omega Talk
Hi all.
When I first saw the post about the on/off switches breaking I thought I would order some spares as someone found a replacement switch. My pack of 10 has turned up today after about 1 month from Amazon. As I only need 2 spares, I have the remaining spare and will offer them to others. Just send me a message, I will provide you with my postal address and then you can send me a letter with a return letter I will post back to you.
I am only offering this to UK addresses as I don't know how you would buy a UK stamps from outside the UK.
Mark
-
RE: Accessing internet through Cisco SDMposted in Omega Talk
I have not tried this, and don't know if it in the repo but try to install Lynx or elink, this is text based browser.
If the Onion console was able to open a iframe to something like www.google.com this would then be redirected to the captive portal, I think.
-
RE: Oled Screenposted in Omega Talk
The GIT hub link to Python code mentions SSD1306. This is a I2C display. I have used this with a Ardiuno in the past. The pin out is, power, gnd, I2C and I2C clock. Take a look at this picture I found with Google.

If you have a voltmeter you should be able to buzz out the pins.