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//秋月のOLEDとアイテンドウのOLEDのアドレスは3C
//ssd1306_level_meter_r1_S3_1
//ヘッダー
#include <Arduino.h>
#include <Wire.h>
//定義
#define MAX_PAGE (7)
#define MAX_COL (127)
#define COMMAND_MODE 0x80 // continuation bit is set!
#define DATA_MODE 0x40
#define SET_COLUMN_ADDRESS 0x21 // takes two bytes, start address and end address of display data RAM
#define SET_PAGE_ADDRESS 0x22 // takes two bytes, start address and end address of display data RAM
#define SET_MEMORY_ADDRESSING_MODE 0x20 // takes one byte as given above
#define HORIZONTAL_ADDRESSING_MODE 0x00
//I2Cに配列を転送する
void write_s(uint8_t *str1, uint8_t len1) {
Wire.beginTransmission( 0x3c );
for (int ii = 0; ii < len1; ii++) {
//一文字出力
Wire.write(*str1 ++);
}//for
Wire.endTransmission();
}//write_s
//セットページアドレス
void setPageAddress(uint8_t start, uint8_t end)
{
uint8_t databytes[6] = {COMMAND_MODE, SET_PAGE_ADDRESS, COMMAND_MODE, start, COMMAND_MODE, end};
write_s(databytes, 6);
}//setPageAddress
//セットカラムアクセス
void setColumnAddress(uint8_t start, uint8_t end)
{
uint8_t databytes[6] = {COMMAND_MODE, SET_COLUMN_ADDRESS, COMMAND_MODE, start, COMMAND_MODE, end};
write_s(databytes, 6);
}//setColumnAddress
//セットメモリーアドレシングモード
void setMemoryAddressingMode()
{
uint8_t databytes[4] = {COMMAND_MODE, SET_MEMORY_ADDRESSING_MODE, COMMAND_MODE, HORIZONTAL_ADDRESSING_MODE};
write_s(databytes, 4);
}//setMemoryAddressingMode
//座標
int SO_X = 0;
int SO_Y = 0;
//8ドット分のデータ
char dot_1ch[8];
char dot_2ch[8];
//ブロックカウント
char b_count = 0;
//パターンRAMの内容を液晶に転送
void level_meter(int L1, int L2) {
//範囲の設定 (OLED内部のx,yカウンターを初期化してホームポジション0,0に)
setPageAddress(0, MAX_PAGE); // all pages
setColumnAddress(0, MAX_COL); // all columns
//yのループ
for (SO_Y = 0; SO_Y < 64; SO_Y++) {
if (L1 >= SO_Y){dot_1ch[b_count] = 1;}else{dot_1ch[b_count] = 0;}
if (L2 >= SO_Y){dot_2ch[b_count] = 1;}else{dot_2ch[b_count] = 0;}
b_count++;
//b_count = 7; //debug
if (b_count > 7 ) {
//L1 L1 L1 vL1 L1 L1 L1 L1 L1
int a; //一時
//データの配列の定義
uint8_t databytes[2] = {DATA_MODE, 0x00};
//空白1
for (int x = 0; x < (8 * 2); x++) {
databytes[1] = 0x00;
write_s(databytes, 1+1);
}//for
//L1 L1 L1 L1 L1 L1 L1 L1 L1 L1
a = 0;
if(dot_1ch[0] != 0 ) {a = a | 0b00000001;}
if(dot_1ch[1] != 0 ) {a = a | 0b00000010;}
if(dot_1ch[2] != 0 ) {a = a | 0b00000100;}
if(dot_1ch[3] != 0 ) {a = a | 0b00001000;}
if(dot_1ch[4] != 0 ) {a = a | 0b00010000;}
if(dot_1ch[5] != 0 ) {a = a | 0b00100000;}
if(dot_1ch[6] != 0 ) {a = a | 0b01000000;}
if(dot_1ch[7] != 0 ) {a = a | 0b10000000;}
for (int x = 0; x < (8 * 4); x++) {
//a = 0x55;
databytes[1] = a;
write_s(databytes, 2);
}//for x
//空白2
for (int x = 0; x < (8 * 4); x++) {
databytes[1] = 0x00;
write_s(databytes, 1+1);
}//for
//L2 L2 L2 L2 L2 L2 L2 L2 L2
a = 0;
if(dot_2ch[0] != 0 ) {a = a | 0b00000001;}
if(dot_2ch[1] != 0 ) {a = a | 0b00000010;}
if(dot_2ch[2] != 0 ) {a = a | 0b00000100;}
if(dot_2ch[3] != 0 ) {a = a | 0b00001000;}
if(dot_2ch[4] != 0 ) {a = a | 0b00010000;}
if(dot_2ch[5] != 0 ) {a = a | 0b00100000;}
if(dot_2ch[6] != 0 ) {a = a | 0b01000000;}
if(dot_2ch[7] != 0 ) {a = a | 0b10000000;}
for (int x = 0; x < (8 * 4); x++) {
//a = 0xaa;
databytes[1] = a;
write_s(databytes, 2);
}//for x
//空白3
for (int x = 0; x < (8 * 2); x++) {
databytes[1] = 0x00;
write_s(databytes, 1+1);
}//for
b_count = 0;
}//end if b_count
}//for SO_Y
//while(1){} //debug
}//Sound_Oscilloscope
//SSD1306の初期化
void display_begin(void) {
//I2Cの初期化
Wire.begin(); //C011
delay(200);
//SSD1306の初期化スペル(魔法)
//0x80,0x8D,0x80,0x14,0x80,0xAF
write_s( (uint8_t*) "\200\215\200\024\200\257", 6);
delay(100);
//セットメモリーアドレシングモード (画面の終端に来たら画面の先頭に)
setMemoryAddressingMode();
//範囲の設定 (OLED内部のx,yカウンターを初期化してホームポジション0,0に)
setPageAddress(0, MAX_PAGE); // all pages
setColumnAddress(0, MAX_COL); // all columns
}//display_begin
//初期化
void setup() {
//SSD1306の初期化
display_begin();
}//setup
//メインループ
void loop() {
static int L1 = 0;
static int L2 = 0;
L1 = random(64);
L2 = random(64);
level_meter(L1, L2); //画面の再表示
//delay(1000); //1秒待つ debug
}//loop