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Which I2C address does the 320x240 TFT display on the v6 use?

Gordon Gibby
 

I don't completely understand the I2c and need to get a pressure transducer that doesn't conflict with the I2C address of the TFT display that Ashar is using.
Can anyone explain to me which I2C address NOT to purchase on the pressure transducers?   They come in multiple different (fixed) I2C addresses.
thanks, sorry for the dumb quesiton but time limited here.
Gordon

Evan Hand
 

Could you not get the address from the github source code?

73
Evan
AC9TU

AC9NM - Jerry Ponko
 

The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.

Jerry

Jack, W8TEE
 

Consider his code:

XPT2046_Touchscreen ts(CS_PIN);
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);


The ILI9341 is usually associated with SPI interfaces, so doesn't use a slave address.

Jack, W8TEE


On Thursday, March 26, 2020, 11:17:29 AM EDT, Evan Hand <elhandjr@...> wrote:


Could you not get the address from the github source code?

73
Evan
AC9TU

--
Jack, W8TEE

Gordon Gibby
 

thank you!
gordon


On Thu, Mar 26, 2020 at 11:23 AM AC9NM - Jerry Ponko <ac9nm.jp@...> wrote:
The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.

Jerry

Ashhar Farhan
 

Gordon,
The I2C is brought out on a connector (similar to the ubitx wire connectors). It has 5 pins :
GND, +3.3v, 5V, A5, A4. You can connect any I2C device to it. More in an hour or so.
- f

On Thu, Mar 26, 2020 at 8:55 PM Gordon Gibby <docvacuumtubes@...> wrote:
thank you!
gordon


On Thu, Mar 26, 2020 at 11:23 AM AC9NM - Jerry Ponko <ac9nm.jp@...> wrote:
The tft display uses the SPI bus and not the I2C bus. The only conflict on the I2C bus I can think of would be with the Si5351 which is at address 0x60.

Jerry

Jim Sheldon
 

Gordon, the V6 display does not use the I2C bus at all.  It is an SPI device, not I2C.  The only I2C device is the Si5351 which uses I2C address 60.  

Jim, W0EB


On Mar 26, 2020, at 10:39 AM, Gordon Gibby <docvacuumtubes@...> wrote:

I don't completely understand the I2c and need to get a pressure transducer that doesn't conflict with the I2C address of the TFT display that Ashar is using.
Can anyone explain to me which I2C address NOT to purchase on the pressure transducers?   They come in multiple different (fixed) I2C addresses.
thanks, sorry for the dumb quesiton but time limited here.
Gordon

Gordon Gibby
 

Thanks everyone!!


On Thu, Mar 26, 2020 at 11:48 AM Jim Sheldon <w0eb@...> wrote:
Gordon, the V6 display does not use the I2C bus at all.  It is an SPI device, not I2C.  The only I2C device is the Si5351 which uses I2C address 60.  

Jim, W0EB


On Mar 26, 2020, at 10:39 AM, Gordon Gibby <docvacuumtubes@...> wrote:

I don't completely understand the I2c and need to get a pressure transducer that doesn't conflict with the I2C address of the TFT display that Ashar is using.
Can anyone explain to me which I2C address NOT to purchase on the pressure transducers?   They come in multiple different (fixed) I2C addresses.
thanks, sorry for the dumb quesiton but time limited here.
Gordon

AndyH
 

Doc,

   I've used these utilities to scan the bus for existing addresses.  Good tools to have in the drawer. 

https://create.arduino.cc/projecthub/abdularbi17/how-to-scan-i2c-address-in-arduino-eaadda
https://gist.github.com/tfeldmann/5411375

   Good hunting!

    73, Andy


On Thu, Mar 26, 2020 at 09:29 AM, Gordon Gibby wrote:
I don't completely understand the I2c and need to get a pressure transducer that doesn't conflict with the I2C address of the TFT display that Ashar is using.
Can anyone explain to me which I2C address NOT to purchase on the pressure transducers?   They come in multiple different (fixed) I2C addresses.
thanks, sorry for the dumb quesiton but time limited here.
Gordon

GM4CID
 

Gordon,

If you are looking at using a board with the Bosch BMP180 transducer the I2C address is 0x77.

73 Bob GM4CID