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added pwm-info: check restrictions

bastelfix 2018-12-14 23:33:04 +01:00
parent 3849a7c900
commit be90beed39
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Expanding-Sonoffs.md

@ -128,7 +128,7 @@ Internal pull-up/-down resistors
GPIO 0-15 all have a built-in pull-up resistor, just like in an Arduino. GPIO16 has a built-in pull-down resistor. GPIO 0-15 all have a built-in pull-up resistor, just like in an Arduino. GPIO16 has a built-in pull-down resistor.
### PWM ### PWM
Unlike most Atmel chips (Arduino), the ESP8266 doesn’t support hardware PWM, however, software PWM is supported on all digital pins. The default PWM range is 10-bits @ 1kHz, but this can be changed (up to >14-bit@1kHz). Unlike most Atmel chips (Arduino), the ESP8266 doesn’t support hardware PWM, however, software PWM is supported on all digital pins. The default PWM range is 10-bits @ 1kHz, but this can be changed (up to >14-bit@1kHz). Check [Restrictions](https://github.com/arendst/Sonoff-Tasmota/wiki/Expanding-Sonoffs#restrictions).
### Analog input ### Analog input
The ESP8266 has a single analog input, with an input range of 0 - 1.0V. If you supply 3.3V, for example, you will damage the chip. Some boards like the NodeMCU have an on-board resistive voltage divider, to get an easier 0 - 3.3V range. You could also just use a trimpot as a voltage divider. The ESP8266 has a single analog input, with an input range of 0 - 1.0V. If you supply 3.3V, for example, you will damage the chip. Some boards like the NodeMCU have an on-board resistive voltage divider, to get an easier 0 - 3.3V range. You could also just use a trimpot as a voltage divider.