From 81a630237d1a6095553498ed125208ee3ac10ec7 Mon Sep 17 00:00:00 2001 From: cnlohr Date: Mon, 27 Jul 2015 03:43:08 -0400 Subject: [PATCH] fix readme to make it less incorrect. --- embeddedcommon/README.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/embeddedcommon/README.md b/embeddedcommon/README.md index 494a8b2..f322088 100644 --- a/embeddedcommon/README.md +++ b/embeddedcommon/README.md @@ -42,7 +42,9 @@ Linux - Not really so practical as much as it's just a test for ColorChord. You STM32F303 - Using a STM32F303 with an analog input on the processor. This implementation expects a 25MHz HSE crystal, with a 2x PLL, so the effective clock rate is 50 MHz. It doesn't have much free processor, but you could do some simple tasks provided you don't have too many LEDs. This uses SPI to output to WS2812 LEDs. -STM32F407 - Using a STM32F407 with a PDM microphone . This implementation expects a 25MHz HSE crystal, with a 2x PLL, so the effective clock rate is 50 MHz. It doesn't have much free processor, but you could do some simple tasks provided you don't have too many LEDs. This uses SPI to output to WS2812 LEDs. +STM32F407 - Using a STM32F407 with a PDM microphone. This implementation expects an 8MHz HSE crystal. The effective clock rate is 100 MHz. It has tons of free processor. This also uses SPI to output to WS2812 LEDs. + +ESP8266 - Using an ESP8266 and the on-processor analog in. It operates at the normal 80 MHz (not double-clocked!) Then it uses I2S to send the WS2812 data. TODO