请教当esp8266 的EN口被外界拉低,芯片进入关闭状态,理论上GPIO口为高阻是吗?
为什么我的电路当EN口为低时,插上usb给锂电池充电,这时你触摸电路板,很容易就导致接在GPIO3上的LED微微亮起来(低电平亮)。
这时mcu并没有启动,为什么GPIO口会有电流泄露,如何避免?
En管脚为低的时候,IO口不为高阻的问题。
Re: En管脚为低的时候,IO口不为高阻的问题。
Postby ESP_Greg » Tue Jun 21, 2016 12:26 pm
您测过GPIO3的电平吗?您用的硬件是自己做的板子?
能用我们的模组或者开发板试一下吗?
GPIO3是UART0 Rx,不会输出的
能用我们的模组或者开发板试一下吗?
GPIO3是UART0 Rx,不会输出的
Who is online
Users browsing this forum: No registered users and 2 guests
Login
Newbies Start Here
Are you new to ESP8266?
Unsure what to do?
Dunno where to start?
Start right here!
Latest SDK
Documentation
Complete listing of the official ESP8266 related documentation release by ESPRESSIF!
Must read here!
- All times are UTC+08:00
- Top
- Delete all board cookies
About Us
Espressif Systems is a fabless semiconductor company providing cutting-edge low power WiFi SoCs and wireless solutions for wireless communications and Internet of Things applications. We are the manufacturer of ESP8266EX.