Difference: TheHardware (11 vs. 12)

Revision 122020-10-09 - UliRaich

Line: 1 to 1

META TOPICPARENT	name="WebHome"

The Hardware

The CPU card

Line: 84 to 84

Here is an overview table showing the devices and their connections:

Module	Connections	GPIO on ESP8266	GPIO on ESP32	Functionality

Changed:

<
<

PSRAM

D3
D4

GPIO 17
GPIO 16

used by PSRAM on WROVER
cannot be used by shields

>
>

WROVER CPU board	D3 D4		GPIO 17 GPIO 16	used by PSRAM on WROVER cannot be used by shields
Re-use pins D3 and D4 on WROVER CPU board:	D3 D4		GPIO 25 connected to GPIO 17 GPIO 4 connected to GPIO 16	then use GPIO 4 and GPIO 25

1 button shield	D3 patched to D1	GPIO 0 patched to GPIO 5	GPIO 17 patched to GPIO 22	on / off push button
WS2812B RGB shield	D2	GPIO 4	GPIO 21	addressable rgb LED
WS2812B RGB ring	D0	GPIO 16	GPIO 26	7 LED WS2812 ring

Changed:

<
<

DS1307 RTC and data logger

D1
D2

D5
D6
D7
D8

GPIO 5 I2C SCL
GPIO 4 I2C SDA

GPIO 14 SPI Clock
GPIO 12 SPI MOSI
GPIO 13 SPI MISO
GPIO 15 SPI CS

GPIO 22 I2C SCL
GPIO 21 I2C SDA

GPIO 18 SPI clock
GPIO 19 SPI MOSI
GPIO 23 SPI MISO
GPIO 5 SPI CS

Real Time Clock

SD card interface

>
>

DS1307 RTC and data logger

D1
D2

D5
D6
D7
D8

GPIO 5 I2C SCL
GPIO 4 I2C SDA

GPIO 14 SPI Clock
GPIO 12 SPI MISO
GPIO 13 SPI MOSI
GPIO 15 SPI CS

GPIO 22 I2C SCL
GPIO 21 I2C SDA

GPIO 18 SPI clock
GPIO 19 SPI MISO
GPIO 23 SPI MOSI
GPIO 5 SPI CS

Real Time Clock

SD card interface

Buzzer shield	D5 D6 D7 D8	GPIO 14 (default) GPIO 12 GPIO 13 GPIO15	GPIO 18 (default) GPIO 19 GPIO 23 GPIO 5	passive buzzer
BMP180 shield	D1 D2	GPIO 5 I2C SCL GPIO 4 I2C SDA	GPIO 22 I2C SCL GPIO 21 I2C SDA	I2C barometric pressure sensor and temperature sensor
DHT11 shield	D4 patched to D1	GPIO 2 patched to GPIO 5	GPIO 16 patched to GPIO 22	temperature and humidity sensor

View topic | History: r24 < r23 < r22 < r21 | More topic actions...

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