2020年3月26日 · I would like to use ESP-12F using I2C, however the official documentation is not clear about SCL / SDA pins on the chip.

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2020年3月28日 · This is a simple circuit for ESP8266 chip and can be modified more, First of all let's answer your questions: 1- 10K is a normal pull resistor for designers, but if your system is very sensitive on current drawn, or your system is battery powered, it's better to increase pull-up resistor to reduce power consumption while key pressed or I2C transmission. 2- It's very …

2020年9月26日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

The problem is pin11 GPIO2 of the ESP12F. It must pulled up to 3.3V for each operation mode of the ESP. The datasheet of the ESP12F states that GPIO2 is also I2C_SDA pin. Does it makes sense for a pin that needs to pulled up during operation to be SDA at the same time? Here is a state configurations for normal operation mode and flashing mode:

Most of the people face the problem while connecting them. The issue is that GPIO16 provides a strong HIGH during deepSleep and your external reset from Serial-TTL is fighting to make a reset, but loosing, the GPIO16 is the strongest.

I'm having some trouble with this ESP8266, to switch UP, DOWN, OFF dual relay, using Arduino code and a physical 3 states switch. The code defines input GPIOs 12,14 as INPUT_PULLUP to avoid cases ...

2020年9月7日 · On ESP8266 the default pins for I2S are: Data bits (SD) = GPIO3/RX0, Data bit-clock (SCK) = GPIO15, Word select (WS) = GPIO2/TX1 However in my application Im using these pins for another purpose.

2023年9月13日 · I purchased an LED module P10 LED module 16x32 matrix which I used to make LED moving display. (Reference) In that connection, what is A & B?

2021年4月18日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.