MVM-VC: Difference between revisions

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= Links =
= Links =


* https://gitlab.triumf.ca/mvmdev - TRIUMF gitlab repository
* [[MVM-IT]] MVM with Italian baseboard
** https://gitlab.triumf.ca/mvmdev/gui - TRIUMF copy of mvm_gui
* [[MVM-TR]] MVM with TRIUMF baseboard
** https://gitlab.triumf.ca/mvmdev/mvmcontroller
* [[ESP32]] ESP32 information
** https://gitlab.triumf.ca/mvmdev/mvmcontroller/-/tree/dev-esp32 - ESP32 development branch
* [[RPI3]] RPi3 information
** https://gitlab.triumf.ca/mvmdev/hwrev0/-/blob/master/Altium/COVID19%20-%20Ventilator/Project%20Outputs/Schematic%20PDF/COVID19%20-%20Ventilator%20Control%20SCHEMATIC.pdf - board schematics
** https://gitlab.triumf.ca/mvmdev/hwrev0/-/blob/master/Altium/COVID19%20-%20Ventilator/Project%20Outputs/Board%20PDF/COVID19%20-%20Ventilator%20Control%20BOARD.PDF - board layout
* Italian repositories:
** https://github.com/NuclearInstruments/MVMFirmware - Milano git repository
** https://github.com/MVMSoftware/gui - GUI git repository
* https://edev-group.triumf.ca/hw/ventilator-controller/rev0 - TRIUMF edev repository
** https://edev-group.triumf.ca/hw/ventilator-controller/rev0/-/blob/master/Altium/COVID19%20-%20Ventilator/Project%20Outputs/Schematic%20PDF/COVID19%20-%20Ventilator%20Control%20SCHEMATIC.pdf - board schematics
** https://edev-group.triumf.ca/hw/ventilator-controller/rev0/-/blob/master/Altium/COVID19%20-%20Ventilator/Project%20Outputs/Board%20PDF/COVID19%20-%20Ventilator%20Control%20BOARD.PDF - board layout
* [[ESP32]] - ESP32 information: adafruit HUZZA32 and ESP-WROOM32 modules
* [[RPI3]] - RaspberryPi3 information: install Raspbian, etc
 
= General information =
 
* external power supply: 24 VDC screw terminals
** regulated down to 5V USB power (+5V_USB) which is
** regulated down to 3.3V (+3V_CPU)
* 4 channels of relay drivers
* 2 screw terminals (CPU_BUZZ/BUZZ and CPU_AUX/AUX1)
* 2 screw terminals (CPU_LED1/AUX2 and CPU_LED2/AUX3)
* connection for "featherwing 2.4in" display
* 7 screw terminals for I2C (I2C 0..6)
* 1 screw terminal for SPI (EXT_SPI_CS0)
* 1 pressure sensor
* 3 sites for microcontroller (only 1 at a time): Adafruit HUZZA32, NanoPi, RaspberryPi
 
= Switches and Jumpers =
 
* JMP3/JMP4 - select +3V_CPU from our regulator or from ESP32 internal regulator
* SW1/SW2/SW3/SW4 - select I2C power +3V_CPU or +5V_USB
* JMP1_DRV1/JMP2_DRV1 (DRV1..DRV4) - select relay driver
 
= Test plan =
 
Done:
 
* ESP32 I2C communication with pressure sensor (standalone): [BS 2020apr2].
* board powered 24V: [DB/BS 2020apr4]
* ESP32 runs: [BS 2020apr4, KO 2020apr5]
* RaspberryPi runs: [LM 2020apr5, KO 2020apr5]
* ESP32 to RPi3 USB connection ok, ESP32 powered from USB or 24VDC ok, no crash when 24VDC power is cycled [KO 2020apr5]
* ESP32 featherwing TFT display ok (standalone): [KO 2020apr5]
* control and readback of relays (valves): ESP32 [BS 2020apr4], RPi [LM 2020apr5, KO 2020apr5]
* I2C communication: ESP32 [BS 2020apr4], RPi [LM 2020apr5]
* ESP32 Wifi radio works: [KO 2020apr5]
 
Partial:
 
* SPI communication: ESP32 [BS 2020apr4], RPi [...]
* Pressure sensor readout (I2C): ESP32 [BS 2020apr4], RPi [...]
* BUZZ, AUX1: ESP32 [...], RPi [KO 2020apr4]
 
Pending:
 
* external I2C: ESP32 [...], RPi [...]
* AUX2, AUX3: ESP32 [...], RPi [...]
* featherwing display: ESP32 [...], RPi [...]
* flow meter readout (I2C): ESP32 [...], RPi [...]
* proportional valve control (DAC): ESP32 [...]
* ESP32 Wifi communication: [...]
* RPi Wifi client: [...]
* RPi Wifi hotspot: [...]
* RPi touch screen: [...]
 
= System configurations permitted by hardware =
 
* "Italian model": [ MVM-VC + ESP32 ] ---- usb-serial ---- [ RPi3 + GUI ] (remote control) ---- wifi or cat5 or SD/USB flash for data collection
* "one ESP32": [ MVM-VC + ESP32 + small LCD + mini-GUI ] ---- wifi for data collection (no cat5, no SDflash)
* "one Pi": [ MVM-VC + RPi + GUI ] ---- wifi or cat5 or SD/USB flash for data collection
* "two Pi": [ MVM-VC + RPi/NanoPi ] ---- cat5 ---- [ RPi + GUI ] ---- wifi or SD/USB flash for data collection
* "three Pi": [ MVM-VC + RPi/NanoPi (control) ---???--- RPi + GUI (local control) ] ---???--- [ RPi + GUI ] (remote control)
* "2.5 Pi": [ MVM-VC + ESP32 --- usb-serial --- RPi + GUI (local control) ] ---- cat5 ---- [ RPi + GUI ] (remote control)
 
Notable hardware limitations:
* MVM-VC can be fully operated by ESP32 or RPi or NanoPi (not at the same time)
* ESP32: yes wifi, no cat5 ethernet, no usb, no sd flash (sd flash maybe via adafruit LCD "feather")
* NanoPi: maybe wifi, maybe HDMI/DP connector to drive monitor (NanoPi to be confirmed)
* RPi is the most capable: cat5/rj45 ethernet, wifi, HDMI/DP, USB, SD flash slot.
 
Abbreviations: MVM-VC - TRIUMF PCB, ESP32 - adafruit HUZZA32/WROOM32/ESP32 icrocontroller, RPi - RaspberryPi, NanoPi - NanoPi, GUI - medium size LCD running the MVM python GUI, mini-GUI - small size LCD running minimal GUI coded in ESP32.
 
= RPi3/4 connections =
 
!!! ALL GPIO PINS are 3.3V, NOT 5V safe !!!
 
[[RPI3]] - link to the RPi3 page
 
Note1: GPIO pin numbers on MVM-VC board schematics are the "WiringPi" pin numbers. They do not correspond to GPIO pin numbers on the RPi3/RPi4 schematics.
 
Note2: special purpose pins for SPI and I2C are correct.
 
RPi3/4 names are per J8 schematics:
* RPi4 : https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_4b_4p0_reduced.pdf
* RPi3B+ : https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_3bplus_1p0_reduced.pdf
* RPi3B : https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_3b_1p2_reduced.pdf
 
<pre>
RPi3/4 name - WiringPi name - J8 header pin - baseboard name - function
 
GPIO8  - GPIO10/CE0  - 24 - CPU SPI CS (SPI) - (output) SPI nCS
GPIO9  - GPIO13/MISO - 21 - CPU MISO (SPI) - (input) SPI MISO
GPIO10 - GPIO12/MOSI - 19 - CPU MOSI (SPI) - (output) SPI MOSI
GPIO11 - GPIO14/SCLK - 23 - CPU SCK (SPI) - (output) SPI CLK
GPIO22 - GPIO3  - 15 - CPU DRV STAT4 - (open drain 3.3V input)
GPIO5  - GPIO21 - 29 - CPU DRV STAT3 - (same)
GPIO6  - GPIO22 - 31 - CPU DRV STAT2 - (same)
GPIO13 - GPIO32 - 33 - CPU DRV STAT1 - (same)
GPIO26 - GPIO25 - 37 - CPU BUZZ - (maybe output) direct connection to BUZZ screw terminal
GPIO19 - GPIO24 - 35 - CPU AUX - (maybe output) direct connection to AUX screw terminal
GPIO27 - GPIO2  - 13 - CPU_LED1 - (output) drives open-drain 3.3V AUX2
GPIO17 - GPIO0  - 11 - CPU_LED2 - (output) same, AUX3
GPIO21 - GPIO29 - 40 - CPU DRV CH1 - (output) drives buffer
GPIO20 - GPIO28 - 38 - CPU DRV CH2 - (same)
GPIO16 - GPIO27 - 36 - CPU DRV CH3 - (same)
GPIO12 - GPIO26 - 32 - CPU DRV CH4 - (same)
GPIO4  - GPIO7  -  7 - CPU DRV RSTn - (output, pull up to 3.3V) drives nRESET of I2C and SPI chips
GPIO3  - GPIO9/SCL1 -  5 - CPU SCL - (I2C, pull up to 3.3V)
GPIO2  - GPIO8/SDA1 -  3 - CPU SDA - (I2C, pull up to 3.3V)
 
3.3VDC -  1 - "+3V_CPU2", N/C if JMP4 open
3.3VDC - 17 - "+3V_CPU2", see above
 
5.0VDC - 2 - +5V_USB
5.0VDC - 4 - +5V_USB
 
GND -  6 - GND
GND -  9 - GND
GND - 14 - GND
GND - 20 - GND
GND - 25 - GND
GND - 30 - GND
GND - 34 - GND
GND - 39 - GND
 
GPIO14 - GPIO15/TX -  8 - Pi3 CPU TX - N/C
GPIO15 - GPIO16/RX - 10 - Pi3 CPU RX - N/C
GPIO18 - GPIO1  - 12 - N/C
GPIO32 - GPIO4  - 16 - N/C
GPIO24 - GPIO5  - 18 - N/C
GPIO25 - GPIO6  - 22 - N/C
GPIO7  - GPIO11/CE1 - 26 - N/C
ID_SD  - SDA0  - 27 - N/C
ID_SC  - SCL0  - 28 - N/C
 
RPi PWM pins: GPIO12, GPIO13, GPIO18, GPIO19
 
</pre>
 
= NanoPi connections =
 
TBW
 
= ESP32 connections =
 
!!! ALL GPIO PINS are 3.3V, NOT 5V safe !!!
 
[[ESP32]] - link to the ESP32 page
 
* ESP32 power: per https://learn.adafruit.com/adafruit-huzzah32-esp32-feather/power-management, last "not recommended" option: "Connect an external 5V power supply to the USB and GND pins"
 
* Pinouts Rev 2020apr5
 
<pre>
ESP32 pin and name - WROOM32 - HUZZA32 - header - baseboard - function
 
"bottom row"
 
42 - GPIO21 - IO21 - 21      - JP1-1  - A1  - CPU SPI CS (SPI) - (output) SPI nCS - mux GPIO21 or VSPIHD
41 - U0TXD  - TXD0 - TX/17  - JP1-2  - A2  - FTHR CPU TX - N/C - mux GPIO1 or U0TXD
40 - U0RXD  - RXD0 - RX/16  - JP1-3  - A3  - FTHR CPU RX - N/C - mux GPIO3 or U0RXD
38 - GPIO19 - IO19 - MISO/19 - JP1-4  - A4  - CPU MISO (SPI) - (input) SPI MISO - mux GPIO19 or U0CTS or VSPIQ
35 - GPIO18 - IO18 - MOSI/18 - JP1-5  - A5  - CPU MOSI (SPI) - (output) SPI MOSI - mux GPIO18 or VSPICLK
34 - GPIO5  - IO5  - SCK/5  - JP1-6  - A6  - CPU SCK (SPI) - (output) SPI CLK - mux GPIO5 or VSPICS0
24 - GPIO4  - IO4/A2_0 - ADC2/A5/4    - JP1-7  - A7  - CPU DRV STAT4 - (open drain 3.3V input) - mux GPIO4 or RTC_GPIO10
5 - SENSOR_VP C16/270pF - IO36/SEN_VP/A1_0 - ADC1/A4/36  - JP1-8  - A8  - CPU DRV STAT3 - (same) - mux GPIO36 or RTC_GPIO0 (input only)
8 - SENSOR_VN C17/270pF - IO39/SEN_VN/A1_3 - ADC1/A3/39  - JP1-9  - A9  - CPU DRV STAT2 - (same) - mux GPIO39 or RTC_GPIO3 (input only)
10 - VDET_1 - I34/A1_6 - "input only" ADC1/A2/34  - JP1-10 - A10 - CPU DRV STAT1 - (same) - mux GPIO34 or RTC_GPIO4 (input only)
14 - GPIO25 - IO25/DAC1/A2_8 - ADC2/A1/DAC1/25 - JP1-11 - A11 - N/C - reserved for DAC output - mux GPIO25 or RTC_GPIO6 or DAC1
15 - GPIO26 - IO26/DAC2/A2_9 - ADC2/A0/DAC2/26 - JP1-12 - A12 - CPU BUZZ - (maybe output) direct connection to BUZZ screw terminal - mux GPIO26 or RTC_GPIO7 or DAC2
none - none - GND    - JP1-13 - A13 - GND
none - none - NC      - JP1-14 - A14 - N/C
none - none - "3V"    - JP1-15 - A15 - "+3V_CPU2"
none - none -  RST    - JP1-16 - A16 - CPU RESET - N/C
 
"top row"
 
none - none - BAT    - JP3-1  - B1  - N/C
none - none - EN    - JP3-2  - B2  - N/C
none - none - USB    - JP3-3  - B3  - "+5V_USB"
20 - MTCK  - IO13/A2_4 - "red LED" ADC2/13/A12 - JP3-4  - B4  - CPU_LED1 - (output) drives open-drain 3.3V AUX2 - mux GPIO13 or RTC_GPIO14
18 - MTDI  - IO12/A2_5 - "internal pulldown, output only" ADC2/12/A11 - JP3-5  - B5  - CPU_LED2 - (output) same, AUX3 - mux GPIO12 or RTC_GPIO15 - "boot fail if pulled high"
16 - GPIO27 - IO27/A2_7 - ADC2/27/A10 - JP3-6  - B6  - CPU DRV CH1 - (output) drives buffer - mux GPIO27 or RTC_GPIO17
13 - 32K_XN - IO33/A1_5/X32N - ADC1/33/A9  - JP3-7  - B7  - CPU DRV CH2 - (same) - mux GPIO33 or RTC_GPIO8
21 - MTDO  - IO15/A2_3 - ADC2/15/A8  - JP3-8  - B8  - CPU DRV CH3 - (same) - mux GPIO15 or RTC_GPIO13
12 - 32K_XP - IO32/A1_4/X32P - ADC1/32/A7  - JP3-9  - B9  - CPU DRV CH4 - (same) - mux GPIO32 or RTC_GPIO9
17 - MTMS  - IO14/A2_6 - ADC2/14/A6  - JP3-10 - B10 - CPU DRV RSTn - (output, pull up to 3.3V) drives nRESET of I2C and SPI chips, mux GPIO14 or RTC_GPIO16
39 - GPIO22 - IO22 - SCL/22 - JP3-11 - B11 - CPU SCL - (I2C, pull up to 3.3V) - mux GPIO22 or U0RTS
36 - GPIO23 - IO23 - SDA/23 - JP3-12 - B12 - CPU SDA - (I2C, pull up to 3.3V) - mux GPIO23
 
not on header, internally connected on HUZZA32:
 
11 - VDET_2 - I35/A1_7 - ADC1/35/A13 - N/C - VBAT voltmeter (through divider) - mux GPIO35 or ADC1_CH7 or RTC_GPIO5 (input only)
 
not clear what function:
 
23 - GPIO0  - IO0/A2_1 - GPIO0 - serial RTS - mux GPIO0 or RTC_GPIO11
22 - GPIO2  - IO2/A2_2 - GPIO2 - serial DTR (looks like mistake on schematic) - mux GPIO2 or RTC_GPIO12
25 - GPIO16  - IO16 - IO16 - not connected? - mux GPIO16 or U2RXD
27 - GPIO17  - IO17 - IO17 - not connected? - mux GPIO17 or U2TXD
9 - CHIP_PU - EN - RESET - push button - no mux
 
WROOM32 flash memory connection ("U3"):
 
28 - SD_DATA_2 - SD2 - n/c - mux SD_DATA2 or GPIO9
29 - SD_DATA_3 - SD3 - n/c - mux SD_DATA3 or GPIO10
30 - SD_CMD - CMD - n/c - mux SD_CMD or GPIO11
31 - SD_CLK - CLK - n/c - mux SD_CLK or GPIO6
32 - SD_DATA_0 - SD0 - n/c - mux SD_DATA0 or GPIO7
33 - SD_DATA_1 - SD1 - n/c - mux SD_DATA1 or GPIO8
 
Not connected to ESP32:
 
CPU AUX - (maybe output) direct connection to AUX screw terminal
 
Note:
- I2C controller can use any/all GPIO pins
- SPI controller can use any/all GPIO pins
 
</pre>
 
= I2C addresses =
 
* 0x70 - I2C switch - U1 - TI TCA9548APWR [[https://edev-group.triumf.ca/hw/ventilator-controller/rev0/-/blob/master/Altium/Datasheets/tca9548a%20-%20I2C%20switch%208-channel.pdf Datasheet]]
* 0x76 - pressure sensor - "TE Connectivity Measurement Specialties" 5525DSO-DB001DS [[https://edev-group.triumf.ca/hw/ventilator-controller/rev0/-/blob/master/Altium/Datasheets/MS5525DSO_D20-1%20pressure%20sensor.pdf Datasheet]]
 
To probe the pressure sensor:
<pre>
$ i2cset -y 1 0x70 0 0x80
$ i2cget -y 1 0x70
0x80
$ i2cdetect -y 1 ### detects: 0x70 (switch) and 0x76 (pressure sensor)
    0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: 70 -- -- -- -- -- 76 --                       
</pre>
 
= Pressure sensor =
 
Calibration constants (chip on KO's board)
<pre>
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa0 w
0x0100
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa1 w
0x0100
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa2 w
0x2b39
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa3 w
0x2b39
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa4 w
0x521e
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa5 w
0x521e
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa6 w
0x250e
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa7 w
0x250e
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa8 w
0x1a07
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xa9 w
0x1a07
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xaa w
0x3d94
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xab w
0x3d94
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xac w
0x6b1f
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xad w
0x6b1f
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xae w
0x0c00
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xae w
0x0c00
pi@raspberrypi:~ $ i2cget -y 1 0x76 0xaf w
0x0c00
</pre>
 
= MVM-GUI =
 
== Install ==
 
* as root:
** apt-get update
** apt-get install python3-pyqt5 python3-numpy python3-pyqtgraph python3-serial
** ### does not work, installs wrong pip: apt-get install python3-pip
** curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
** python3 get-pip.py --force-reinstall
** ### does not work, installs too-old version of yaml 3.13: apt-get install python3-yaml
** pip3 install PyYAML ### version 5.3.1
 
* ssh pi@rpi
* ### use TRIUMF gitlab branch ko_test instead ### git clone git clone https://github.com/MechanicalVentilatorMilano/gui.git
* git clone https://gitlab.triumf.ca/mvmdev/gui.git
* git checkout ko_test
 
== Run with python simulator ==
 
* cd gui
* ./mvm_gui.py fakeESP32
 
== Run with ESP32 simulator ==
 
* load the ardiuno sketch mock/mock.ino into ESP32 (see instructions below)
* ./mvm_gui.py ### default connection is /dv/ttyUSB0 at 115200 bps
 
= MVM-Firmware =
 
* ssh pi@...
* ### use TRIUMF gitlab branch ko_test instead ### git clone https://github.com/NuclearInstruments/MVMFirmware.git
* git clone https://gitlab.triumf.ca/mvmdev/MVMFirmware.git
* git checkout ko_test
* cd arduino; ./ardiuno
* open .../MVMFirmware/ArduinoCorePP_PWM_hw_v3/ArduinoCorePP_PWM_hw_v3.ino
* install library SimpleCLI (1.0.9), aREST (2.8.0)
* build sketch (there is warnings about TwoWire::requestFrom())
* load sketch
* serial 115200
* output
<pre>
ets Jun  8 2016 00:22:57
 
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5816
entry 0x400806ac
SCAN I2C BUS: 0
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 1
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 2
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 3
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 4
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 5
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 6
Scanning... I2C
No I2C devices found
 
SCAN I2C BUS: 7
Scanning... I2C
No I2C devices found
 
SENSOR:          0
SENS_T1:          65535
OFF_T1:          65535
TCS:              65535
TCO:              65535
TREF:            65535
TEMPSENS:        65535
OFFSET:            0.00
SENSOR:          1
SENS_T1:          65535
OFF_T1:          65535
TCS:              65535
TCO:              65535
TREF:            65535
TEMPSENS:        65535
OFFSET:            0.00
SENSOR:          2
SENS_T1:          65535
OFF_T1:          65535
TCS:              65535
TCO:              65535
TREF:            65535
TEMPSENS:        65535
OFFSET:            0.00
SENSOR:          3
SENS_T1:          65535
OFF_T1:          65535
TCS:              65535
TCO:              65535
TREF:            65535
TEMPSENS:        65535
OFFSET:            0.00
SFM driver version 0.1.0
SFM sensor probing failed
...
Measure Flow Sensor initialized!
</pre>
 
* send: "get all", reply: "valore=0.00,0.00,0,0,0,0,0,0,1"
 
= Dev-esp32 Firmware =
 
* git clone git@gitlab.triumf.ca:mvmdev/mvmcontroller.git
* cd mvmcontroller
* git checkout dev-esp32
 
= End =

Latest revision as of 15:40, 15 April 2020

Links

  • MVM-IT MVM with Italian baseboard
  • MVM-TR MVM with TRIUMF baseboard
  • ESP32 ESP32 information
  • RPI3 RPi3 information
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