ESP8266
Hardware
- It's a wireless SoC
- It has GPIO, I2C, ADC, SPI, PWM and some more
- It's running at 80MHz
- 64KBytes of instruction RAM
- 96KBytes of data RAM
- 64KBytes boot ROM
- It has a Winbond W25Q40BVNIG SPI flash
- It's a RISC architecture
- The core is a 106micro Diamond Standard core (LX3) made by Tensilica
- The ESP8266 chip is made by Espressif
- Modules bearing this chip are made by various manufacturers
Boot Modi
| GPIO15 | GPIO0 | GPIO2 | Mode | Beschreibung | Warum? |
|---|---|---|---|---|---|
| GND | GND | 3.3V | UART | Serieller Boot | Neue Firmware kann heruntergeladen werden |
| GND | 3.3V | 3.3V | Flash | Startet vom internen Flash | Firmware starten |
| 3.3V | - | - | SDIO | Bootet von externen SD Karte |
Der ESP-01 hat GPIO15 intern schon fest auf GND verschalten. Darum können bei dieser Variante nur die ersten beiden Boot-Modi ausgewählt werden.
Projekte
- ESP8266/BeamerControl
- ESP8266/Programmer
- ESP8266/Lightstick
- ESP8266/WorldDominationSwitch
- ESP8266/Uebertrafficlight