Difference between revisions of "Repeater GPIO Connections"

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(Created page with "==RPi 4 GPIO pin out== 600px * Note the RPi4 (only) can be powered with 5.2 v directly on Pins 2 and 4. Ground is Pins 6, 9, 14, 20, 25,...")
 
 
(11 intermediate revisions by 2 users not shown)
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Back to [[Repeater Controller|repeater controller]] main page
 
==RPi 4 GPIO pin out==
 
==RPi 4 GPIO pin out==
  
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! Pin No !! BCM No !! Wiring Pi !! RPi Pri !! RPi Alt0 !! Primary Use !! Secondary Use !! Notes
 
! Pin No !! BCM No !! Wiring Pi !! RPi Pri !! RPi Alt0 !! Primary Use !! Secondary Use !! Notes
 
|-
 
|-
−
| 1 || - || - || 3.3v || - || - || - || Future Clock module?
+
| 1 || - || - || 3.3v || - || Clock module || - || -
 
|-
 
|-
 
| 2 || - || - || 5v || - || - || - || -
 
| 2 || - || - || 5v || - || - || - || -
 
|-
 
|-
−
| 3 || 2 || 8 || GPIO 2 || SDA1 || - || - || Future Clock module?
+
| 3 || 2 || 8 || GPIO 2 || SDA1 || Clock module || - || -
 
|-
 
|-
 
| 4 || - || - || 5v || - || - || - || -
 
| 4 || - || - || 5v || - || - || - || -
 
|-
 
|-
−
| 5 || 3 || 9 || GPIO 3 || SCL1 || - || - || Future Clock module?
+
| 5 || 3 || 9 || GPIO 3 || SCL1 || Clock module || - || -
 
|-
 
|-
 
| 6 || - || - || 0v || - || - || - || -
 
| 6 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 7 || 4 || 7 || GPIO 4 || GPCLK0 || - || - || Future Clock module?
+
| 7 || 4 || 7 || GPIO 4 || GPCLK0 || Clock module || - || -
 
|-
 
|-
−
| 8 || 14 || 15 || GPIO 14 || TXD0 || Button - Up || - || Active low
+
| 8 || 14 || 15 || GPIO 14 || TXD0 || i2c sda || RS-232? || i2c needs 1k8 p/u to +3v3
 
|-
 
|-
−
| 9 || - || - || 0v || - || - || - || Future Clock module?
+
| 9 || - || - || 0v || - || Clock module || - || -
 
|-
 
|-
−
| 10 || 15 || 16 || GPIO 15 || RXD0 || Band MSB D2 || - || -
+
| 10 || 15 || 16 || GPIO 15 || RXD0 || i2c scl || RS-232? || i2c needs 1k8 p/u to +3v3
 
|-
 
|-
−
| 11 || 17 || 0 || GPIO 17 || FL1 || IR Sensor Input || Active low ||  
+
| 11 || 17 || 0 || GPIO 17 || FL1 || - || IR Sensor Input? || For initial config
 
|-
 
|-
−
| 12 || 18 || 1 || GPIO 18 || SPI6_CE0_N || - || - || Future 2nd TS
+
| 12 || 18 || 1 || GPIO 18 || - || IR Sender Output || - || To control HDMI Switch
 
|-
 
|-
−
| 13 || 27 || 2 || GPIO 27 || SD0_DAT3 || Button - Down || - || Active low
+
| 13 || 27 || 2 || GPIO 27 || SD0_DAT3 || IR Bank Select || - || Hi for upstream HDMI switch
 
|-
 
|-
 
| 14 || - || - || 0v || - || - || - || -
 
| 14 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 15 || 22 || 3 || GPIO 22 || SD0_CLK || Button - Left || - || Active low
+
| 15 || 22 || 3 || GPIO 22 || SD0_CLK || Rack power control || - || Active high output
 
|-
 
|-
−
| 16 || 23 || 4 || GPIO 23 || SD0_CMD|| Button - Right || - || Active low
+
| 16 || 23 || 4 || GPIO 23 || SD0_CMD|| RX 5 Active || - || Active high input
 
|-
 
|-
 
| 17 || - || - || 3.3v || - || - || - || -
 
| 17 || - || - || 3.3v || - || - || - || -
 
|-
 
|-
−
| 18 || 24 || 5 || GPIO 24 || SD0_DAT0 || Button - Select || - || Active low
+
| 18 || 24 || 5 || GPIO 24 || SD0_DAT0 || RX 3 Active || - || Active high input
 
|-
 
|-
−
| 19 || 10 || 12 || GPIO 10 || SPI0_MOSI || - || - || Future Pri TS
+
| 19 || 10 || 12 || GPIO 10 || SPI0_MOSI || RX 6 Active || - || Active high input
 
|-
 
|-
 
| 20 || - || - || 0v || - || - || - || -
 
| 20 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 21 || 9 || 13 || GPIO 9 || SPI0_MISO || - || - || Future Pri TS
+
| 21 || 9 || 13 || GPIO 9 || SPI0_MISO || RX 7 Active || Rack shutdown button || Low to toggle shutdown
 
|-
 
|-
−
| 22 || 25 || 6 || GPIO 25 || SD0_DAT1 || Button - Back || - || Active low
+
| 22 || 25 || 6 || GPIO 25 || SD0_DAT1 || RX 4 Acive || - || Active high input
 
|-
 
|-
−
| 23 || 11 || 14 || GPIO 11 || SPI0_SCLK || - || - || Future Pri TS
+
| 23 || 11 || 14 || GPIO 11 || SPI0_SCLK || Output 6 select || Spare GPIO || Active high output
 
|-
 
|-
−
| 24 || 8 || 10 || GPIO 8 || SPI0_CE0_N || - || - || Future Pri TS
+
| 24 || 8 || 10 || GPIO 8 || SPI0_CE0_N || Output 7 select || Rack Shutdown signal || Active low to trigger shutdown
 
|-
 
|-
 
| 25 || - || - || 0v || - || - || - || -
 
| 25 || - || - || 0v || - || - || - || -
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| 28 || 1 || 31 || ID_SC || SCL0 || Reserved || - || Not Available
 
| 28 || 1 || 31 || ID_SC || SCL0 || Reserved || - || Not Available
 
|-
 
|-
−
| 29 || 5 || 21 || GPIO 5 || GPCLK0 || Button - Menu || - || Active low
+
| 29 || 5 || 21 || GPIO 5 || GPCLK0 || Output 5 select || Spare GPIO || Active high output
 
|-
 
|-
 
| 30 || - || - || 0v || - || - || - || -
 
| 30 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 31 || 6 || 22 || GPIO 6 || GPCLK2 || Button - Mute || - || Active Low
+
| 31 || 6 || 22 || GPIO 6 || GPCLK2 || Output 4 select || Spare GPIO || Active high output
 
|-
 
|-
−
| 32 || 12 || 26 || GPIO 12 || PWM0 || Band LSB D0 || - || -
+
| 32 || 12 || 26 || GPIO 12 || PWM0 || RX 1 Active || - || Active high input
 
|-
 
|-
−
| 33 || 13 || 23 || GPIO 13 || PWM1 || Band NSB D1 || - || -
+
| 33 || 13 || 23 || GPIO 13 || PWM1 || Output 3 select || Spare GPIO || Active high output
 
|-
 
|-
 
| 34 || - || - || 0v || - || - || - || -
 
| 34 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 35 || 19 || 24 || GPIO 19 || SPI6_MESO || - || - || Future 2nd TS
+
| 35 || 19 || 24 || GPIO 19 || SPI6_MESO || RX 2 Active || - || Active high input
 
|-
 
|-
−
| 36 || 16 || 27 || GPIO 16 || FL0 || Button - Power || - || Active low
+
| 36 || 16 || 27 || GPIO 16 || FL0 || Output 0 select || Spare GPIO || Active high output
 
|-
 
|-
−
| 37 || 26 || 25 || GPIO 26 || SD0_DAT2 || Button - OSD Info || - || Active low
+
| 37 || 26 || 25 || GPIO 26 || SD0_DAT2 || Output 1 select || Spare GPIO || Active high output
 
|-
 
|-
−
| 38 || 20 || 28 || GPIO 20 || SPI6_MOSI || - || - || Future 2nd TS
+
| 38 || 20 || 28 || GPIO 20 || SPI6_MOSI || Output 2 select || Spare GPIO || Active high output
 
|-
 
|-
 
| 39 || - || - || 0v || - || - || - || -
 
| 39 || - || - || 0v || - || - || - || -
 
|-
 
|-
−
| 40 || 21 || 29 || GPIO 21 || SPI6_SCLK || - || - || Future 2nd TS
+
| 40 || 21 || 29 || GPIO 21 || SPI6_SCLK || PTT for TX || - || Active high
 
|}
 
|}
  
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Note that the GPIO pin names are markedly different from the RPi 3B.  Each pin on the RPi4 GPIO can be referred to in many ways: its physical pin number, the Broadcom I/O number, the Wiring Pi number or the primary or alternate names.  Source for GPIO designations was the Raspberry Pi 4 Model B datasheet.
 
Note that the GPIO pin names are markedly different from the RPi 3B.  Each pin on the RPi4 GPIO can be referred to in many ways: its physical pin number, the Broadcom I/O number, the Wiring Pi number or the primary or alternate names.  Source for GPIO designations was the Raspberry Pi 4 Model B datasheet.
 +
 +
===Functional List===
 +
 +
{| class="wikitable"
 +
|-
 +
! Function !! Pin
 +
|-
 +
| Receiver 1 Active || 32
 +
|-
 +
| Receiver 2 Active || 35
 +
|-
 +
| Receiver 3 Active || 18
 +
|-
 +
| Receiver 4 Active || 22
 +
|-
 +
| Receiver 5 Active || 16
 +
|-
 +
| Receiver 6 Active || 19
 +
|-
 +
| Receiver 7 Active || 21
 +
|-
 +
| - || -
 +
|-
 +
| IR LED Drive || 12
 +
|-
 +
| IR Bank Select || 13
 +
|-
 +
| - || -
 +
|-
 +
| Transmitter PTT || 40
 +
|-
 +
| - || -
 +
|-
 +
| Output 0 select || 36
 +
|-
 +
| Output 1 select || 37
 +
|-
 +
| Output 2 select || 38
 +
|-
 +
| Output 3 select || 33
 +
|-
 +
| Output 4 select || 31
 +
|-
 +
| Output 5 select || 29
 +
|-
 +
| Output 6 select || 23
 +
|-
 +
| Output 7 select || 24
 +
|-
 +
| - || -
 +
|-
 +
| Hardware Shutdown || 26
 +
|-
 +
| - || -
 +
|-
 +
| IR Sensor || 11
 +
|}

Latest revision as of 16:17, 11 February 2023

Back to repeater controller main page

RPi 4 GPIO pin out

GPIO-Pinout-Diagram-2.png

  • Note the RPi4 (only) can be powered with 5.2 v directly on Pins 2 and 4. Ground is Pins 6, 9, 14, 20, 25, 30, 34 and 39.

GPIO Connections for the ATV Repeater

Here is the initial list of GPIO connections.

Pin No BCM No Wiring Pi RPi Pri RPi Alt0 Primary Use Secondary Use Notes
1 - - 3.3v - Clock module - -
2 - - 5v - - - -
3 2 8 GPIO 2 SDA1 Clock module - -
4 - - 5v - - - -
5 3 9 GPIO 3 SCL1 Clock module - -
6 - - 0v - - - -
7 4 7 GPIO 4 GPCLK0 Clock module - -
8 14 15 GPIO 14 TXD0 i2c sda RS-232? i2c needs 1k8 p/u to +3v3
9 - - 0v - Clock module - -
10 15 16 GPIO 15 RXD0 i2c scl RS-232? i2c needs 1k8 p/u to +3v3
11 17 0 GPIO 17 FL1 - IR Sensor Input? For initial config
12 18 1 GPIO 18 - IR Sender Output - To control HDMI Switch
13 27 2 GPIO 27 SD0_DAT3 IR Bank Select - Hi for upstream HDMI switch
14 - - 0v - - - -
15 22 3 GPIO 22 SD0_CLK Rack power control - Active high output
16 23 4 GPIO 23 SD0_CMD RX 5 Active - Active high input
17 - - 3.3v - - - -
18 24 5 GPIO 24 SD0_DAT0 RX 3 Active - Active high input
19 10 12 GPIO 10 SPI0_MOSI RX 6 Active - Active high input
20 - - 0v - - - -
21 9 13 GPIO 9 SPI0_MISO RX 7 Active Rack shutdown button Low to toggle shutdown
22 25 6 GPIO 25 SD0_DAT1 RX 4 Acive - Active high input
23 11 14 GPIO 11 SPI0_SCLK Output 6 select Spare GPIO Active high output
24 8 10 GPIO 8 SPI0_CE0_N Output 7 select Rack Shutdown signal Active low to trigger shutdown
25 - - 0v - - - -
26 7 11 GPIO 7 SPI0_CE1_N Hardware Shutdown - Active low if enabled
27 0 30 ID_SD SDA0 Reserved - Not Available
28 1 31 ID_SC SCL0 Reserved - Not Available
29 5 21 GPIO 5 GPCLK0 Output 5 select Spare GPIO Active high output
30 - - 0v - - - -
31 6 22 GPIO 6 GPCLK2 Output 4 select Spare GPIO Active high output
32 12 26 GPIO 12 PWM0 RX 1 Active - Active high input
33 13 23 GPIO 13 PWM1 Output 3 select Spare GPIO Active high output
34 - - 0v - - - -
35 19 24 GPIO 19 SPI6_MESO RX 2 Active - Active high input
36 16 27 GPIO 16 FL0 Output 0 select Spare GPIO Active high output
37 26 25 GPIO 26 SD0_DAT2 Output 1 select Spare GPIO Active high output
38 20 28 GPIO 20 SPI6_MOSI Output 2 select Spare GPIO Active high output
39 - - 0v - - - -
40 21 29 GPIO 21 SPI6_SCLK PTT for TX - Active high

The clock module that may be used (not tested yet) on pins 1, 3, 5, 7 and 9 is this https://thepihut.com/blogs/raspberry-pi-tutorials/17209332-adding-a-real-time-clock-to-your-raspberry-pi. This would allow the repeater to keep track of time without an internet connection and reset correctly after power outages.

Note that the GPIO pin names are markedly different from the RPi 3B. Each pin on the RPi4 GPIO can be referred to in many ways: its physical pin number, the Broadcom I/O number, the Wiring Pi number or the primary or alternate names. Source for GPIO designations was the Raspberry Pi 4 Model B datasheet.

Functional List

Function Pin
Receiver 1 Active 32
Receiver 2 Active 35
Receiver 3 Active 18
Receiver 4 Active 22
Receiver 5 Active 16
Receiver 6 Active 19
Receiver 7 Active 21
- -
IR LED Drive 12
IR Bank Select 13
- -
Transmitter PTT 40
- -
Output 0 select 36
Output 1 select 37
Output 2 select 38
Output 3 select 33
Output 4 select 31
Output 5 select 29
Output 6 select 23
Output 7 select 24
- -
Hardware Shutdown 26
- -
IR Sensor 11
Retrieved from ‘https://wiki.batc.org.uk/index.php?title=Repeater_GPIO_Connections&oldid=10290’