Add RDM Sensor TEMPERATURE based on MCP3424 with 10K Precision Epoxy Thermistor - 3950 NTC

vanvught commented 1 year ago

[x] Implement a new device MCP3424 -> https://www.abelectronics.co.uk/p/69/adc-pi-raspberry-pi-analogue-to-digital-converter
[x] Implement a RDM Sensor based on MCP3424 with -> https://www.adafruit.com/product/372

Datasheet MCP3424 https://ww1.microchip.com/downloads/en/devicedoc/22088c.pdf

@parabolic333

vanvught commented 1 year ago

Just an observation when working with the MCP3424 board from https://www.abelectronics.co.uk/p/69/adc-pi-raspberry-pi-analogue-to-digital-converter

The 5V on that board can only be used when the Raspberry Pi connected to a perfectly 5.0V power supply. Please be aware that the original USB power supply from the foundation has an output > 5.1 Volt. As there is not voltage generator on the board, this > 5.1 voltage is used as input. Therefore the thermistor reading will be wrong.

vanvught commented 1 year ago

There is a sample program here -> https://github.com/vanvught/linux_rpi_artnet_l6470/tree/main/lib-device/examples

Build: make clean -j && make -j && sudo ./mcp3424

Channel configuration for testing:

 Channel 1 -> 12K -> 5V0
 Channel 2 -> 10K -> 5V0
 Channel 3 -> 8K2 -> 5V0
 Channel 4 -> 4K7 -> 5V0
 Channel 5 -> floating
 Channel 6 -> 3V3
 Channel 7 -> floating
 Channel 8 -> 5V0

Output: Schermafbeelding 2023-03-15 om 12 59 45

Note: The 5.0V is a perfectly regulated power supply used for the Raspberry Pi. The 3.3V is the regulated voltage from the Raspberry Pi.

@parabolic333

vanvught commented 1 year ago

Example sensors.txt for https://www.abelectronics.co.uk/p/69/adc-pi-raspberry-pi-analogue-to-digital-converter

#sensors.txt
mcp3424=68
mcp3424=69

@parabolic333

vanvught commented 1 year ago

+8 sensors.

pi@raspberrypi-3:/development/workspace/linux_rpi_artnet_l6470 $ sudo ./linux_rpi_artnet_l6470 bond0
gpio
m_tBoardType=2

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- 68 69 -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --                         
No display found
[V0.1] Raspberry Pi 3 Model B Plus V1.3 Compiled on Mar 15 202
Art-Net 4 Stepper L6470
Network init
Network
 Hostname  : raspberrypi-3
 Domain    : 
 If        : 4: bond0
 Inet      : 192.168.2.121/24
 Netmask   : 255.255.255.0
 Gateway   : 192.168.2.1
 Broadcast : 192.168.2.255
 Mac       : b8:27:eb:96:9e:69
 Mode      : S
Network::TcpBegin -> i=0
SparkFun init
--> src/dmxslotinfo.cpp:DmxSlotInfo:46
<-- src/dmxslotinfo.cpp:DmxSlotInfo:56
FromString() src/dmxslotinfo.cpp, line 94: nMask=0x1
Motor 0 - Communication issues! Check SPI configuration and cables
Skipping Motor 1
Skipping Motor 2
Skipping Motor 3
Skipping Motor 4
Skipping Motor 5
Skipping Motor 6
Skipping Motor 7
InitSwitch()
busyCheck()
InitPos()
src/tlc59711dmxparams.cpp::Dump 'devices.txt':
 led_type=TLC59711 [0]
 led_count=4
--> src/lightsetchain.cpp:Add:143
m_nDmxStartAddress=65535, m_nDmxFootprint=0
m_nDmxStartAddress=65535, m_nDmxFootprint=0
<-- src/lightsetchain.cpp:Add:171
--> src/lightsetchain.cpp:Add:143
m_nDmxStartAddress=65535, m_nDmxFootprint=0
m_nDmxStartAddress=1, m_nDmxFootprint=12
<-- src/lightsetchain.cpp:Add:171
Max size = 16, Current size = 1

Index   Pointer     Type
0   0x174a0b8   1

Configuring Art-Net
RDM Device configuration
 Manufacturer Name : www.orangepi-dmx.org
 Manufacturer ID   : 5000
 Serial Number     : C0A80279
 Root label        : Raspberry Pi RDM Device
 Product Category  : 7FFF
 Product Detail    : 7FFF
RDM Responder configuration
 Protocol Version 1.0
 DMX Address      : 1
 DMX Footprint    : 12
 Personality 1 of 1 [Sparkfun [0] with TLC59711 [4]]
 Sub Devices      : 0
 Sensors          : 9
Art-Net 4 [1]
 Firmware   : 1.57
 Short name : 192.168.2.121
 Long name  : Sparkfun [0] with TLC59711 [4]
 Output
  Port 0  1    HTP  Art-Net
Bridge
 Firmware : 1.26
 CID      : 74e2d98b-f247-49e9-87f7-215d9c6fb82b
PWM parameters
 Type  : TLC59711 [0]
 Count : 4 RGB
 Clock : 0 Hz Default {Default: 5000000 Hz, Maximum 10000000 Hz}
 DMX   : StartAddress=1, FootPrint=12
Starting Art-Net
timer
SetMode() src/hardware.cpp, line 80: Mode=2
Art-Net started

vanvught commented 1 year ago

Schermafbeelding 2023-03-15 om 15 11 02

@parabolic333

parabolic333 commented 1 year ago

Hi Arjan

Fabulous!! you are a Genius! Thank you Simon

From: Arjan @.> Sent: 15 March 2023 14:16 To: vanvught/linux_rpi_artnet_l6470 @.> Cc: parabolic333 @.>; Mention @.> Subject: Re: [vanvught/linux_rpi_artnet_l6470] Add RDM Sensor TEMPERATURE based on MCP3424 with 10K Precision Epoxy Thermistor - 3950 NTC (Issue #1)

Closed #1https://github.com/vanvught/linux_rpi_artnet_l6470/issues/1 as completed via 08b0154576e409f6353ab0ebfe2f2759574bbcbb.

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Add RDM Sensor TEMPERATURE based on MCP3424 with 10K Precision Epoxy Thermistor - 3950 NTC #1