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Support inverted tm1637 display (#2878)

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Co-authored-by: Oxan van Leeuwen <oxan@oxanvanleeuwen.nl>
This commit is contained in:
Jonas De Kegel
2021-12-20 09:30:35 +01:00
committed by GitHub
parent 6ec9cfb044
commit 542fb2175b
4 changed files with 44 additions and 11 deletions
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esphome/components/tm1637/tm1637.cpp
+32 -11
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@@ -130,7 +130,9 @@ void TM1637Display::setup() {
}
void TM1637Display::dump_config() {
ESP_LOGCONFIG(TAG, "TM1637:");
ESP_LOGCONFIG(TAG, " INTENSITY: %d", this->intensity_);
ESP_LOGCONFIG(TAG, " Intensity: %d", this->intensity_);
ESP_LOGCONFIG(TAG, " Inverted: %d", this->inverted_);
ESP_LOGCONFIG(TAG, " Length: %d", this->length_);
LOG_PIN(" CLK Pin: ", this->clk_pin_);
LOG_PIN(" DIO Pin: ", this->dio_pin_);
LOG_UPDATE_INTERVAL(this);
@@ -173,8 +175,14 @@ void TM1637Display::display() {
this->send_byte_(TM1637_I2C_COMM2);
// Write the data bytes
for (auto b : this->buffer_) {
this->send_byte_(b);
if (this->inverted_) {
for (uint8_t i = this->length_ - 1; i >= 0; i--) {
this->send_byte_(this->buffer_[i]);
}
} else {
for (auto b : this->buffer_) {
this->send_byte_(b);
}
}
this->stop_();
@@ -241,14 +249,27 @@ uint8_t TM1637Display::print(uint8_t start_pos, const char *str) {
}
// Remap segments, for compatibility with MAX7219 segment definition which is
// XABCDEFG, but TM1637 is // XGFEDCBA
data = ((data & 0x80) ? 0x80 : 0) | // no move X
((data & 0x40) ? 0x1 : 0) | // A
((data & 0x20) ? 0x2 : 0) | // B
((data & 0x10) ? 0x4 : 0) | // C
((data & 0x8) ? 0x8 : 0) | // D
((data & 0x4) ? 0x10 : 0) | // E
((data & 0x2) ? 0x20 : 0) | // F
((data & 0x1) ? 0x40 : 0); // G
if (this->inverted_) {
// XABCDEFG > XGCBAFED
data = ((data & 0x80) ? 0x80 : 0) | // no move X
((data & 0x40) ? 0x8 : 0) | // A
((data & 0x20) ? 0x10 : 0) | // B
((data & 0x10) ? 0x20 : 0) | // C
((data & 0x8) ? 0x1 : 0) | // D
((data & 0x4) ? 0x2 : 0) | // E
((data & 0x2) ? 0x4 : 0) | // F
((data & 0x1) ? 0x40 : 0); // G
} else {
// XABCDEFG > XGFEDCBA
data = ((data & 0x80) ? 0x80 : 0) | // no move X
((data & 0x40) ? 0x1 : 0) | // A
((data & 0x20) ? 0x2 : 0) | // B
((data & 0x10) ? 0x4 : 0) | // C
((data & 0x8) ? 0x8 : 0) | // D
((data & 0x4) ? 0x10 : 0) | // E
((data & 0x2) ? 0x20 : 0) | // F
((data & 0x1) ? 0x40 : 0); // G
}
if (*str == '.') {
if (pos != start_pos)
pos--;