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Add support for SSD1306 72x40 displays (#4659)

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* add SSD1306 72x40

* fix indents

* fix clang style
This commit is contained in:
Dave Johnston 2023-04-12 05:02:29 +01:00 committed by GitHub
parent 5a4840f641
commit a3cacc0c8b
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 24 additions and 1 deletions
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1
esphome/components/ssd1306_base/__init__.py
View file

@ -27,6 +27,7 @@ MODELS = {
"SSD1306_96X16": SSD1306Model.SSD1306_MODEL_96_16,
"SSD1306_64X48": SSD1306Model.SSD1306_MODEL_64_48,
"SSD1306_64X32": SSD1306Model.SSD1306_MODEL_64_32,
"SSD1306_72X40": SSD1306Model.SSD1306_MODEL_72_40,
"SH1106_128X32": SSD1306Model.SH1106_MODEL_128_32,
"SH1106_128X64": SSD1306Model.SH1106_MODEL_128_64,
"SH1106_96X16": SSD1306Model.SH1106_MODEL_96_16,

15
esphome/components/ssd1306_base/ssd1306_base.cpp
View file

@ -59,6 +59,7 @@ void SSD1306::setup() {
// Set Y offset (0xD3)
this->command(SSD1306_COMMAND_SET_DISPLAY_OFFSET_Y);
this->command(0x00 + this->offset_y_);
// Set start line at line 0 (0x40)
this->command(SSD1306_COMMAND_SET_START_LINE | 0x00);
@ -100,6 +101,7 @@ void SSD1306::setup() {
case SH1107_MODEL_128_64:
case SSD1305_MODEL_128_32:
case SSD1305_MODEL_128_64:
case SSD1306_MODEL_72_40:
this->command(0x12);
break;
}
@ -118,6 +120,9 @@ void SSD1306::setup() {
case SH1107_MODEL_128_64:
this->command(0x35);
break;
case SSD1306_MODEL_72_40:
this->command(0x20);
break;
default:
this->command(0x00);
break;
@ -156,6 +161,10 @@ void SSD1306::display() {
this->command(0x20 + this->offset_x_);
this->command(0x20 + this->offset_x_ + this->get_width_internal() - 1);
break;
case SSD1306_MODEL_72_40:
this->command(0x1C + this->offset_x_);
this->command(0x1C + this->offset_x_ + this->get_width_internal() - 1);
break;
default:
this->command(0 + this->offset_x_); // Page start address, 0
this->command(this->get_width_internal() + this->offset_x_ - 1);
@ -225,6 +234,8 @@ int SSD1306::get_height_internal() {
case SSD1306_MODEL_64_48:
case SH1106_MODEL_64_48:
return 48;
case SSD1306_MODEL_72_40:
return 40;
default:
return 0;
}
@ -246,6 +257,8 @@ int SSD1306::get_width_internal() {
case SH1106_MODEL_64_48:
case SH1107_MODEL_128_64:
return 64;
case SSD1306_MODEL_72_40:
return 72;
default:
return 0;
}
@ -294,6 +307,8 @@ const char *SSD1306::model_str_() {
return "SSD1306 96x16";
case SSD1306_MODEL_64_48:
return "SSD1306 64x48";
case SSD1306_MODEL_72_40:
return "SSD1306 72x40";
case SH1106_MODEL_128_32:
return "SH1106 128x32";
case SH1106_MODEL_128_64:

1
esphome/components/ssd1306_base/ssd1306_base.h
View file

@ -13,6 +13,7 @@ enum SSD1306Model {
SSD1306_MODEL_96_16,
SSD1306_MODEL_64_48,
SSD1306_MODEL_64_32,
SSD1306_MODEL_72_40,
SH1106_MODEL_128_32,
SH1106_MODEL_128_64,
SH1106_MODEL_96_16,

8
esphome/components/ssd1306_i2c/ssd1306_i2c.cpp
View file

@ -53,8 +53,14 @@ void HOT I2CSSD1306::write_display_data() {
}
}
} else {
size_t block_size = 16;
if ((this->get_buffer_length_() & 8) == 8) {
// use smaller block size for e.g. 72x40 displays where buffer size is multiple of 8, not 16
block_size = 8;
}
for (uint32_t i = 0; i < this->get_buffer_length_();) {
uint8_t data[16];
uint8_t data[block_size];
for (uint8_t &j : data)
j = this->buffer_[i++];
this->write_bytes(0x40, data, sizeof(data));