1 files changed, 34 insertions, 0 deletions
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c938a8e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,34 @@
+# ESP8266 Lua/NodeMCU framebuffer + module for SSD1306 OLEDs
+
+This repository contains a Lua module (`ssd1306.lua`), framebuffer
+(`framebuffer.lua`) and fonts (`pixeloperator.lua`, `terminus16.lua`)
+for using **SSD1306**-based OLEDs with ESP8266/NodeMCU firmware.
+
+## Dependencies
+
+ssd1306.lua and framebuffer.lua have been tested with Lua 5.1 on NodeMCU
+firmware 3.0.1 (Release 202112300746, integer build). They require the
+following modules.
+
+* bit
+* i2c
+
+## Usage
+
+Copy **framebuffer.lua**, **ssd1306.lua** and (depending on your font choice)
+**pixeloperator.lua** or **terminus16.lua** to your NodeMCU board and set them
+up as follows.
+
+```lua
+i2c.setup(0, sda_pin, scl_pin, i2c.SLOW)
+ssd1306 = require("ssd1306")
+fn = require("pixeloperator") -- or "terminus16"
+fb = require("framebuffer")
+collectgarbage()
+
+ssd1306.init(128, 64) -- assuming that a 128x64 OLED is connected
+ssd1306.contrast(255) -- maximum contrast
+fb.init(128, 64) -- initialize framebuffer for 128x64 pixels
+fb.print(fn, "Hello from NodeMCU!\nHello yes, this is Lua\n")
+ssd1306.show(fb.buf)
+```