Search found 2 matches

by Adex
Sun Jul 19, 2015 2:21 am
Forum: ESP8266 SDK
Topic: GPIO9 and GPIO10 cause wdt reset
Replies: 5
Views: 13717

Re: GPIO9 and GPIO10 cause wdt reset

If you want to use GPIO9 and GPIO10 you must lift flash pins (3 - WP and 7 - HOLD) and pull up to VCC, then you can use these GPIOs (9&10).

When flashing firmware (for example with Espressif Flash Tool) you must select DIO mode or change it manually in firmware.
by Adex
Tue Jan 20, 2015 2:09 pm
Forum: Showcase
Topic: ESP8266 SPI (Master) & MCP23S17 as PortExpander (Slave)
Replies: 6
Views: 12851

Re: ESP8266 SPI (Master) & MCP23S17 as PortExpander (Slave)

You are using software SPI or hardware SPI?
I'm also using bargraph LED display to show GPIO status (+ resistor ladder).

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