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oled.ts
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oled.ts
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declare interface Math {
floor(x: number): number;
}
/**
* Functions to hack:bit board by Hackids
*/
//% weight=10 color=#db54f6 icon="\uf26c" block="Hackbit OLED" blockId="HackbitOLEDDisplay"
//% groups="OLED"
namespace HackbitOLEDDisplay {
let font: Buffer;
const SSD1306_SETCONTRAST = 0x81
const SSD1306_SETCOLUMNADRESS = 0x21
const SSD1306_SETPAGEADRESS = 0x22
const SSD1306_DISPLAYALLON_RESUME = 0xA4
const SSD1306_DISPLAYALLON = 0xA5
const SSD1306_NORMALDISPLAY = 0xA6
const SSD1306_INVERTDISPLAY = 0xA7
const SSD1306_DISPLAYOFF = 0xAE
const SSD1306_DISPLAYON = 0xAF
const SSD1306_SETDISPLAYOFFSET = 0xD3
const SSD1306_SETCOMPINS = 0xDA
const SSD1306_SETVCOMDETECT = 0xDB
const SSD1306_SETDISPLAYCLOCKDIV = 0xD5
const SSD1306_SETPRECHARGE = 0xD9
const SSD1306_SETMULTIPLEX = 0xA8
const SSD1306_SETLOWCOLUMN = 0x00
const SSD1306_SETHIGHCOLUMN = 0x10
const SSD1306_SETSTARTLINE = 0x40
const SSD1306_MEMORYMODE = 0x20
const SSD1306_COMSCANINC = 0xC0
const SSD1306_COMSCANDEC = 0xC8
const SSD1306_SEGREMAP = 0xA0
const SSD1306_CHARGEPUMP = 0x8D
const chipAdress = 0x3C
const xOffset = 0
const yOffset = 0
let charX = 0
let charY = 0
let displayWidth = 128
let displayHeight = 64 / 8
let screenSize = 0
//let font: Array<Array<number>>
let loadStarted: boolean;
let loadPercent: number;
function command(cmd: number) {
let buf = pins.createBuffer(2)
buf[0] = 0x00
buf[1] = cmd
pins.i2cWriteBuffer(chipAdress, buf, false)
}
//% block="clear OLED display"
//% weight=3
export function clear() {
loadStarted = false
loadPercent = 0
command(SSD1306_SETCOLUMNADRESS)
command(0x00)
command(displayWidth - 1)
command(SSD1306_SETPAGEADRESS)
command(0x00)
command(displayHeight - 1)
let data = pins.createBuffer(17);
data[0] = 0x40; // Data Mode
for (let i = 1; i < 17; i++) {
data[i] = 0x00
}
// send display buffer in 16 byte chunks
for (let i = 0; i < screenSize; i += 16) {
pins.i2cWriteBuffer(chipAdress, data, false)
}
charX = xOffset
charY = yOffset
}
function drawLoadingFrame(str: string) {
command(SSD1306_SETCOLUMNADRESS)
command(0x00)
command(displayWidth - 1)
command(SSD1306_SETPAGEADRESS)
command(0x00)
command(displayHeight - 1)
let col = 0
let page = 0
let data = pins.createBuffer(17);
data[0] = 0x40; // Data Mode
let i = 1
for (let page = 0; page < displayHeight; page++) {
for (let col = 0; col < displayWidth; col++) {
if (page === 3 && col > 12 && col < displayWidth - 12) {
data[i] = 0x60
} else if (page === 5 && col > 12 && col < displayWidth - 12) {
data[i] = 0x06
} else if (page === 4 && (col === 12 || col === 13 || col === displayWidth - 12 || col === displayWidth - 13)) {
data[i] = 0xFF
} else {
data[i] = 0x00
}
if (i === 16) {
pins.i2cWriteBuffer(chipAdress, data, false)
i = 1
} else {
i++
}
}
}
charX = 30
charY = 2
writeString(str)
}
function drawLoadingBar(percent: number) {
charX = 78
charY = 2
let num = Math.floor(percent)
writeNum(num)
writeString("%")
let width = displayWidth - 14 - 13
let lastStart = width * (loadPercent / displayWidth)
command(SSD1306_SETCOLUMNADRESS)
command(14 + lastStart)
command(displayWidth - 13)
command(SSD1306_SETPAGEADRESS)
command(4)
command(5)
let data = pins.createBuffer(2);
data[0] = 0x40; // Data Mode
data[1] = 0x7E
for (let i = lastStart; i < width * (Math.floor(percent) / 100); i++) {
pins.i2cWriteBuffer(chipAdress, data, false)
}
loadPercent = num
}
/**
* @param percent the text to show, eg: "100"
* @param str the text to show, eg: "Carga: "
*/
//% block="draw loading bar at $percent percent $str mensage"
//% percent.min=0 percent.max=100
//% weight=2
export function drawLoading(percent: number, str: string) {
if (loadStarted) {
drawLoadingBar(percent)
} else {
drawLoadingFrame(str)
drawLoadingBar(percent)
loadStarted = true
}
}
//% block="show (without newline) string $str"
//% weight=6
export function writeString(str: string) {
for (let i = 0; i < str.length; i++) {
if (charX > displayWidth - 6) {
newLine()
}
drawChar(charX, charY, str.charAt(i))
charX += 6
}
}
//% block="show (without newline) number $n"
//% weight=5
export function writeNum(n: number) {
let numString = n.toString()
writeString(numString)
}
//% block="show string $str"
//% weight=8
export function writeStringNewLine(str: string) {
writeString(str)
newLine()
}
//% block="show number $n"
//% weight=7
export function writeNumNewLine(n: number) {
writeNum(n)
newLine()
}
//% block="insert newline"
//% weight=4
export function newLine() {
charY++
charX = xOffset
}
function drawChar(x: number, y: number, c: string) {
command(SSD1306_SETCOLUMNADRESS)
command(x)
command(x + 5)
command(SSD1306_SETPAGEADRESS)
command(y)
command(y + 1)
let line = pins.createBuffer(2)
line[0] = 0x40
for (let i = 0; i < 6; i++) {
if (i === 5) {
line[1] = 0x00
} else {
let charIndex = c.charCodeAt(0)
let charNumber = font.getNumber(NumberFormat.UInt8BE, 5 * charIndex + i)
line[1] = charNumber
}
pins.i2cWriteBuffer(chipAdress, line, false)
}
}
function drawShape(pixels: Array<Array<number>>) {
let x1 = displayWidth
let y1 = displayHeight * 8
let x2 = 0
let y2 = 0
for (let i = 0; i < pixels.length; i++) {
if (pixels[i][0] < x1) {
x1 = pixels[i][0]
}
if (pixels[i][0] > x2) {
x2 = pixels[i][0]
}
if (pixels[i][1] < y1) {
y1 = pixels[i][1]
}
if (pixels[i][1] > y2) {
y2 = pixels[i][1]
}
}
let page1 = Math.floor(y1 / 8)
let page2 = Math.floor(y2 / 8)
let line = pins.createBuffer(2)
line[0] = 0x40
for (let x = x1; x <= x2; x++) {
for (let page = page1; page <= page2; page++) {
line[1] = 0x00
for (let i = 0; i < pixels.length; i++) {
if (pixels[i][0] === x) {
if (Math.floor(pixels[i][1] / 8) === page) {
line[1] |= Math.pow(2, (pixels[i][1] % 8))
}
}
}
if (line[1] !== 0x00) {
command(SSD1306_SETCOLUMNADRESS)
command(x)
command(x + 1)
command(SSD1306_SETPAGEADRESS)
command(page)
command(page + 1)
//line[1] |= pins.i2cReadBuffer(chipAdress, 2)[1]
pins.i2cWriteBuffer(chipAdress, line, false)
}
}
}
}
//% block="draw line from:|x: $x0 y: $y0 to| x: $x1 y: $y1"
//% x0.defl=0
//% y0.defl=0
//% x1.defl=20
//% y1.defl=20
//% weight=1
export function drawLine(x0: number, y0: number, x1: number, y1: number) {
let pixels: Array<Array<number>> = []
let kx: number, ky: number, c: number, i: number, xx: number, yy: number, dx: number, dy: number;
let targetX = x1
let targetY = y1
x1 -= x0; kx = 0; if (x1 > 0) kx = +1; if (x1 < 0) { kx = -1; x1 = -x1; } x1++;
y1 -= y0; ky = 0; if (y1 > 0) ky = +1; if (y1 < 0) { ky = -1; y1 = -y1; } y1++;
if (x1 >= y1) {
c = x1
for (i = 0; i < x1; i++ , x0 += kx) {
pixels.push([x0, y0])
c -= y1; if (c <= 0) { if (i != x1 - 1) pixels.push([x0 + kx, y0]); c += x1; y0 += ky; if (i != x1 - 1) pixels.push([x0, y0]); }
if (pixels.length > 20) {
drawShape(pixels)
pixels = []
drawLine(x0, y0, targetX, targetY)
return
}
}
} else {
c = y1
for (i = 0; i < y1; i++ , y0 += ky) {
pixels.push([x0, y0])
c -= x1; if (c <= 0) { if (i != y1 - 1) pixels.push([x0, y0 + ky]); c += y1; x0 += kx; if (i != y1 - 1) pixels.push([x0, y0]); }
if (pixels.length > 20) {
drawShape(pixels)
pixels = []
drawLine(x0, y0, targetX, targetY)
return
}
}
}
drawShape(pixels)
}
//% block="draw rectangle from:|x: $x0 y: $y0 to| x: $x1 y: $y1"
//% x0.defl=0
//% y0.defl=0
//% x1.defl=20
//% y1.defl=20
//% weight=0
export function drawRectangle(x0: number, y0: number, x1: number, y1: number) {
drawLine(x0, y0, x1, y0)
drawLine(x0, y1, x1, y1)
drawLine(x0, y0, x0, y1)
drawLine(x1, y0, x1, y1)
}
//% block="initialize OLED with width $width height $height"
//% width.defl=128
//% height.defl=64
//% weight=9
export function init(width: number, height: number) {
command(SSD1306_DISPLAYOFF);
command(SSD1306_SETDISPLAYCLOCKDIV);
command(0x80); // the suggested ratio 0x80
command(SSD1306_SETMULTIPLEX);
command(0x3F);
command(SSD1306_SETDISPLAYOFFSET);
command(0x0); // no offset
command(SSD1306_SETSTARTLINE | 0x0); // line #0
command(SSD1306_CHARGEPUMP);
command(0x14);
command(SSD1306_MEMORYMODE);
command(0x00); // 0x0 act like ks0108
command(SSD1306_SEGREMAP | 0x1);
command(SSD1306_COMSCANDEC);
command(SSD1306_SETCOMPINS);
command(0x12);
command(SSD1306_SETCONTRAST);
command(0xCF);
command(SSD1306_SETPRECHARGE);
command(0xF1);
command(SSD1306_SETVCOMDETECT);
command(0x40);
command(SSD1306_DISPLAYALLON_RESUME);
command(SSD1306_NORMALDISPLAY);
command(SSD1306_DISPLAYON);
displayWidth = width
displayHeight = height / 8
screenSize = displayWidth * displayHeight
charX = xOffset
charY = yOffset
font = hex`
0000000000
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0000000000`
loadStarted = false
loadPercent = 0
clear()
}
}