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ESP32C3 LED PWM使用和ESP32差异说明
2022-07-24 21:45:00 【perseverance52】
ESP32C3 LED PWM使用和ESP32差异说明
今天在测试合宙ESP32C3的LED PWM功能时发现,有些通道不能用,感觉很奇怪,然后尝试替换通道,0-5通道的可以使用,6-15通道的都没用。于是跑去乐鑫官网看技术手册,结果找到了答案。
LED PWM 控制器 (LEDC)
ESP32和ESP32C3对比
- ESP32
LED_PWM 有
16路通道,即 8 路高速通道和 8 路低速通道。这 16 路通道能够产生独立的数字波形来驱动 RGB LED 设备。高速或低速通道可以由四个高速定时器之一或四个低速定时器之一进行驱动。PWM 控制器还能够自动逐渐增加或减少占空比,在无须处理器干预的情况下实现亮度和颜色渐变。LED_PWM 还支持小数分频,占空比的精确度可以高达16bit。
- ESP32C3
LED PWM 控制器可以用于生成
六路独立的数字波形,具有如下特性&
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