Pppd-140 [updated] Site

void lcd_init() delay_ms(50); // wait >40ms after VDD rises write_4bit(0x30); delay_ms(5); write_4bit(0x30); delay_us(150); write_4bit(0x30); write_4bit(0x20); // set to 4-bit mode // Now send 8-bit commands in two nibbles lcd_command(0x28); // 4-bit, 2 lines, 5x8 font lcd_command(0x0C); // display ON, cursor OFF lcd_command(0x06); // entry mode: increment, no shift lcd_command(0x01); // clear display delay_ms(2);

def send_byte(byte, is_data): send_nibble((byte>>4) & 0x0F, is_data) send_nibble(byte & 0x0F, is_data) time.sleep(0.002) # command execution time pppd-140

def lcd_init(): time.sleep(0.05) send_nibble(0x03, 0); time.sleep(0.005) send_nibble(0x03, 0); time.sleep(0.001) send_nibble(0x03, 0) send_nibble(0x02, 0) # 4-bit mode send_byte(0x28, 0) # function set send_byte(0x0C, 0) # display on send_byte(0x06, 0) # entry mode send_byte(0x01, 0) # clear time.sleep(0.002) void lcd_init() delay_ms(50); // wait >40ms after VDD