ESP types: Difference between revisions
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== ESP8266 == | == ESP8266 == | ||
* Pinout | * Pinout | ||
** ESP-01: [https://homecircuits.eu/blog/wp-content/uploads/2016/01/esp-01-pins.jpg] | ** ESP-01: [https://homecircuits.eu/blog/wp-content/uploads/2016/01/esp-01-pins.jpg] | ||
Revision as of 11:32, 30 November 2020
Comparison
| Flash | RAM | PSRAM | |
|---|---|---|---|
| ESP8266 | |||
| ESP-01 | ext. 1MB | 80kB | |
| Wemos D1 Mini | ext. 4MB | 80kB | |
| NodeMCU | |||
| ESP8265 | |||
| ESP-01 | int. 1-2MB | ||
| ESP32 | |||
| WROOM based | 4MB | 520kB (328k usable) | 0MB |
| ESP32-mini | 4MB | 520kB | 0MB |
| Lolin32 | 4MB | 520kB | 0MB |
| ESP32 DevKit v1 | 4MB | 520kB | 0MB |
| WROVER based | 4MB | 520kB | 8MB |
ESP8266
![[1]](https://homecircuits.eu/blog/wp-content/uploads/2016/01/esp-01-pins.jpg){kind=link}
![[2]](https://esp8266-server.de/dateien/wemos/D1-mini-pinoutKl.png){kind=link}
![[3]](https://lastminuteengineers.com/wp-content/uploads/arduino/ESP-12E-Development-Board-ESP8266-NodeMCU-Pinout.png){kind=link}
| Pin | I2C | SPI | ESP-01 | D1 Mini | Comment | Boot behaviour | |
|---|---|---|---|---|---|---|---|
| GPIO14 | D5 | SCK | x | ||||
| GPIO12 | D6 | MISO | x | ||||
| GPIO13 | D7 | MOSI | x | ||||
| GPIO5 | D1 | SCL | x | ||||
| GPIO4 | D2 | SDA | x | ||||
| GPIO16 | D0 | x | Pulldown resistor | high on boot | |||
| GPIO15 | D8 | CS | x | Boot failure if high | |||
| GPIO0 | D3 | x | x | Boot failure if low | |||
| Inputs | |||||||
| ADC | A0 | x | Analog input | ||||
| Serial | |||||||
| GPIO1 | TX | x | x | TX | high on boot, failure if low | ||
| GPIO3 | RX | x | x | RX | high on boot | ||
| Strapping Pins (Boot) | |||||||
| GPIO2 | D4 | x (LED) | x | high on boot, boot failure if low | |||
ESP32
![[4]](https://www.bastelgarage.ch/image/catalog/Artikel/420571-420580/420571-Pinout.jpg){kind=link}
![[5]](http://1.bp.blogspot.com/-mG0x8f0BKTA/WmiYamp9XdI/AAAAAAAAg5Y/N_P7plcbtmU-15JKqURYqE_yjt98AUdxwCLcBGAs/s1600/Lolin32_pinout03.png){kind=link}
![[6]](https://raw.githubusercontent.com/AchimPieters/esp32-homekit-camera/master/Images/ESP32-30PIN-DEVBOARD.png){kind=link}
![[7]](https://raw.githubusercontent.com/AchimPieters/esp32-homekit-camera/master/Images/ESP32-38PIN-DEVBOARD.png){kind=link}
- WROVER = 8MB PSRAM
| Pin | ADC1 | DAC | RTC(WakeUp) | Touch | SPI | Comment | |
|---|---|---|---|---|---|---|---|
| IO04 | x | x | |||||
| IO05 | CS | ||||||
| IO16 | |||||||
| IO17 | |||||||
| IO18 | CLK | ||||||
| IO19 | MISO | ||||||
| IO23 | MOSI | ||||||
| IO25 | x | x | |||||
| IO26 | x | x | |||||
| IO27 | x | x | |||||
| IO32 | x | x | x | ||||
| IO33 | x | x | x | ||||
| IO12 | x | x | HSPI | (Platform IO JTAG) | |||
| IO13 | x | x | HSPI | (Platform IO JTAG) | |||
| IO14 | x | x | HSPI | (Platform IO JTAG) | |||
| IO15 | x | x | HSPI | (Platform IO JTAG) | |||
| Input only | |||||||
| IO34 | x | x | Input only | ||||
| IO35 | x | x | Input only | ||||
| IO36 | x | x | Input only, Hall | ||||
| IO39 | x | x | Input only, Hall | ||||
| Serial, I2C, SPI | |||||||
| IO1 | TX | ||||||
| IO3 | RX | ||||||
| IO21 | I2C SDA | ||||||
| IO22 | I2C SCL | ||||||
| Strapping Pins (Boot) | |||||||
| IO0 | x | Boot button | |||||
| IO2 | x | Block flash | |||||
| IO5 | ? | ||||||
| IO15 | Low = no boot log | ||||||
| Flash Chip | |||||||
| IO06 | |||||||
| IO07 | |||||||
| IO08 | |||||||
| IO09 | |||||||
| IO10 | |||||||
| IO11 | |||||||