diff -r 000000000000 -r 88d965579617 components/u8g2/csrc/u8x8_d_st7586s_erc240160.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/u8g2/csrc/u8x8_d_st7586s_erc240160.c	Tue Oct 08 12:00:31 2019 +0200
@@ -0,0 +1,256 @@
+/*
+  u8x8_d_st7586s_erc240160.c
+  
+  Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
+  
+  Copyright (c) 2018, olikraus@gmail.com
+  
+  All rights reserved.
+  Redistribution and use in source and binary forms, with or without modification, 
+  are permitted provided that the following conditions are met:
+  * Redistributions of source code must retain the above copyright notice, this list 
+    of conditions and the following disclaimer.
+    
+  * Redistributions in binary form must reproduce the above copyright notice, this 
+    list of conditions and the following disclaimer in the documentation and/or other 
+    materials provided with the distribution.
+  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
+  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
+  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
+  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
+  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
+  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
+  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
+  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
+  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
+  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
+  
+*/
+
+#include "u8g2.h"
+
+
+static const uint8_t u8x8_d_st7586s_sleep_on[] = {
+  U8X8_START_TRANSFER(),  /* enable chip, delay is part of the transfer start */
+  U8X8_C(0x010), /* set power save mode */
+  U8X8_END_TRANSFER(),  /* disable chip */
+  U8X8_END()                  /* end of sequence */
+};
+
+static const uint8_t u8x8_d_st7586s_sleep_off[] = {
+  U8X8_START_TRANSFER(),  /* enable chip, delay is part of the transfer start */
+  U8X8_C(0x011), //Sleep out
+  U8X8_DLY(50), /* delay 50 ms */
+  U8X8_END_TRANSFER(),  /* disable chip */
+  U8X8_END()                  /* end of sequence */
+};
+
+static const uint8_t u8x8_d_st7586s_erc240160_flip0_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x036),  /* Scan Direction Setting */
+  U8X8_A(0x0C8),	/* COM159 -> COM0 SEG383 -> SEG0 */
+  U8X8_C(0x037),	/* Start line 0 */
+  U8X8_A(0x000),
+  U8X8_C(0x02A), /* Column Address Setting */
+  U8X8_A(0x000),  /* COL8 -> COL127 */
+  U8X8_A(0x008),  
+  U8X8_A(0x000), 
+  U8X8_A(0x07F),  /* 120*3=240 pixels + 120 unused */
+  U8X8_END_TRANSFER(),  /* disable chip */
+  U8X8_END()           	/* end of sequence */
+};
+
+static const uint8_t u8x8_d_st7586s_erc240160_flip1_seq[] = {
+  U8X8_START_TRANSFER(),             	/* enable chip, delay is part of the transfer start */
+  U8X8_C(0x036),  /* Scan Direction Setting */
+  U8X8_A(0x000),  /* COM0 -> COM159 SEG0 -> SEG383 */
+  U8X8_C(0x037),  /* Start line 0 */
+  U8X8_A(0x000),
+  U8X8_C(0x02A),  /* Column Address Setting */
+  U8X8_A(0x000),  /* COL0 -> COL119 */
+  U8X8_A(0x000),
+  U8X8_A(0x000),
+  U8X8_A(0x077),  /* 120*3=240 pixels + 120 unused */
+  U8X8_END_TRANSFER(),  /* disable chip */
+  U8X8_END()            /* end of sequence */
+};
+
+static const uint8_t u8x8_d_st7586s_erc240160_init_seq[] = {
+  U8X8_END_TRANSFER(),/* disable chip */
+ // U8G_ESC_RST(1), /* hardware reset */
+  U8X8_DLY(60),   /* Delay 60 ms */
+  U8X8_START_TRANSFER(),/* enable chip */
+
+  U8X8_C(0x001), // Soft reset
+  U8X8_DLY(60), // Delay 120 ms
+
+  U8X8_C(0x011), // Sleep Out
+  U8X8_C(0x028), // Display OFF
+  U8X8_DLY(25), // Delay 50 ms
+
+  U8X8_CAA(0x0C0,0x036,0x01),// Vop = 136h data sheet suggested 0x0145 but this caused streaks
+
+  U8X8_CA(0x0C3,0x000), // BIAS = 1/14
+
+  U8X8_CA(0x0C4,0x007), // Booster = x8
+
+  U8X8_CA(0x0D0,0x01D), // Enable Analog Circuit
+
+  U8X8_CA(0x0B3,0x000), // Set FOSC divider
+
+  U8X8_CA(0x0B5,0x000), // N-Line = 0
+
+  U8X8_C(0x039), // 0x39 Monochrome mode. 0x38 - gray Mode
+
+  U8X8_C(0x03A), // Enable DDRAM Interface
+  U8X8_A(0x002), // monochrome and 4-level
+
+  U8X8_C(0x036), // Scan Direction Setting
+  U8X8_A(0x0C8), // COM:C159->C0   SEG: SEG383->SEG0
+
+  U8X8_C(0x0B1), // First output COM
+  U8X8_A(0x000), // 
+  
+  U8X8_C(0x0B0), // Duty Setting (num rows - 1)
+  U8X8_A(0x09F), 
+
+  U8X8_C(0x020), // Display inversion off
+
+  U8X8_C(0x02A), // Column Address Setting
+  U8X8_A(0x000), // COL0 -> COL127
+  U8X8_A(0x008), // 
+  U8X8_A(0x000), //
+  U8X8_A(0x07F), // 80*3=240 pixels
+
+  U8X8_C(0x02B), // Row Address Setting
+  U8X8_A(0x000), // ROW0 -> ROW159
+  U8X8_A(0x000), //
+  U8X8_A(0x000), //
+  U8X8_A(0x09F), // 160 pixels
+
+  U8X8_C(0x029), // Display ON
+  U8X8_END()  /* end of sequence */
+};
+
+static const u8x8_display_info_t u8x8_st7586s_erc240160_display_info =
+{
+  /* chip_enable_level = */ 0,
+  /* chip_disable_level = */ 1,
+
+  /* post_chip_enable_wait_ns = */ 5,
+  /* pre_chip_disable_wait_ns = */ 5,
+  /* reset_pulse_width_ms = */ 1,
+  /* post_reset_wait_ms = */ 6,
+  /* sda_setup_time_ns = */ 20,
+  /* sck_pulse_width_ns = */  100,  /* datasheet ST7586S */
+  /* sck_clock_hz = */ 8000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be  1000000000/sck_pulse_width_ns */
+  /* ST7586+Atmega128RFA1 works with 8MHz */
+  /* spi_mode = */ 3,   /* active high, rising edge */
+  /* i2c_bus_clock_100kHz = */ 4,
+  /* data_setup_time_ns = */ 20, /* datasheet suggests min 20 */
+  /* write_pulse_width_ns = */ 40,
+  /* tile_width = */ 30,
+  /* tile_height = */ 20,
+  /* default_x_offset = */ 0,  /* abused as flag to know if we are flipped */
+  /* flipmode_x_offset = */ 1, /* as pixel order different for normal/flipped  */
+  /* pixel_width = */ 240,
+  /* pixel_height = */ 160
+};
+
+/*******************************************************************************
+ * st7586s_erc240160 driver. ST7586 based display from buydisplay.com
+ ******************************************************************************/
+uint8_t u8x8_d_st7586s_erc240160(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr) {
+  
+  uint8_t c;
+  uint8_t *ptr;
+  uint8_t i, byte;
+  uint32_t input;
+  uint8_t output[4];
+  switch (msg) {
+    case U8X8_MSG_DISPLAY_DRAW_TILE:
+    u8x8_cad_StartTransfer(u8x8); // OK Start transfer
+    u8x8_cad_SendCmd(u8x8, 0x02B);  /* Row Address Setting */
+    u8x8_cad_SendArg(u8x8, 0x000);
+    u8x8_cad_SendArg(u8x8, 0x008 * ((u8x8_tile_t *)arg_ptr)->y_pos);
+    u8x8_cad_SendArg(u8x8, 0x000);
+    u8x8_cad_SendArg(u8x8, 0x09F); // should set end row based on display dimensions
+    u8x8_cad_SendCmd(u8x8, 0x02C);  /* cmd write display data to ram */
+    c = ((u8x8_tile_t *) arg_ptr)->cnt; //
+    c *= 8;
+    ptr = ((u8x8_tile_t *) arg_ptr)->tile_ptr;  //
+
+// The ST7586S has an unusual 3 pixels per byte format the ERC240160 is even more annoying
+// as it has every 3rd COM line disconnected for extra oddness so here we read in a byte 
+// (8 pixels) and pack that into 4 bytes of 2 pixels + 1 unused each. This has to be done
+// in a different order for flipped, normal UUx11x22 flipped 11x22xUU
+	while (c > 0) {
+      input = ((uint8_t)ptr[0]);
+      
+      for (i=0; i<4; i++)
+      {
+        byte = 0;
+        if (u8x8->x_offset ==0){
+          if (input & 0x80)          // if bit 7
+            byte = byte | 0x18;  //set pixel 1
+          if (input & 0x40)          // if bit 6
+            byte = byte | 0x3;  //set pixel 2
+        }
+        if (u8x8->x_offset ==1){
+          if (input & 0x80)          // if bit 7
+            byte = byte | 0xC0;  //set pixel 1
+          if (input & 0x40)          // if bit 6
+            byte = byte | 0x18;  //set pixel 2
+        }
+        output[i] = byte;
+        input <<= 2;
+      }
+      
+      u8x8_cad_SendData(u8x8, 4, output);
+      ptr += 1;
+      c -= 1;
+    }
+    u8x8_cad_EndTransfer(u8x8); 
+    break;
+  case U8X8_MSG_DISPLAY_INIT:
+    u8x8_d_helper_display_init(u8x8);
+    u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_init_seq);
+    break;
+  case U8X8_MSG_DISPLAY_SETUP_MEMORY:
+    u8x8_d_helper_display_setup_memory(u8x8, &u8x8_st7586s_erc240160_display_info);
+    break;
+  case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
+  	if ( arg_int == 0 )
+    {
+       u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_flip0_seq);
+       u8x8->x_offset = u8x8->display_info->default_x_offset;
+    }
+    else
+    {
+      u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_erc240160_flip1_seq);
+      u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
+    }	
+    break;
+  case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
+    if (arg_int == 0)
+      u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_sleep_off);
+    else
+      u8x8_cad_SendSequence(u8x8, u8x8_d_st7586s_sleep_on);
+    break;
+#ifdef U8X8_WITH_SET_CONTRAST
+  case U8X8_MSG_DISPLAY_SET_CONTRAST:
+    u8x8_cad_StartTransfer(u8x8);
+    u8x8_cad_SendCmd(u8x8, 0x0C0);
+    u8x8_cad_SendArg(u8x8, arg_int);
+    u8x8_cad_SendArg(u8x8, 1);
+    u8x8_cad_EndTransfer(u8x8);
+    break;
+#endif
+  default:
+    return 0;
+  }
+  return 1;
+}