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Topic: ESP8266 NodeMCU SPI (Read 1 time) previous topic - next topic

Reiter

I tried to control a 7segment display with a esp 8266 (NodeMCU v3) with the library from https://github.com/esp8266/Arduino.

I want to show a number on the display, but the display shows different numbers wich are constantly changing.
I increased the frequency divider, since I am of the opinion that the clock is too fast, but without success.

What is the difference between the H-version (HMISO,HMOSI,HCLK,HCS) and the normal version (MISO,MOSI,CLK,CS)?

Is the clock too fast? shall i set a frequenz (the library have a funktion for this)?

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