Files
Shadowtrance dbf850c434 Fixes and new apps (#30)
- M5 Unit Modules library + M5 Unit Test app
- Minor fixes for TodoList, TwoEleven, Snake, Brainfuck and Breakout
- Fixed SerialConsole to use the uart controller as it was broken in one of the many updates
- Fixed keyboard input in TwoEleven, Breakout, Magic8Ball and Snake
- Bluetooth Media Keys app, supports pressing physical keys to trigger the corresponding buttonmatrix button
- Epub Reader app
2026-06-07 15:56:32 +02:00

59 lines
1.6 KiB
C++

#include <UnitScroll.h>
#include <esp_log.h>
static constexpr auto* TAG = "UnitScroll";
bool UnitScroll::begin(Device* dev, uint8_t addr) {
if (!dev || !device_is_ready(dev)) return false;
if (!unitProbe(dev, addr)) {
ESP_LOGW(TAG, "Scroll not found at 0x%02X", addr);
return false;
}
dev_ = dev;
addr_ = addr;
ESP_LOGI(TAG, "Scroll ready at 0x%02X", addr_);
return true;
}
int16_t UnitScroll::readDelta() {
if (!dev_) return 0;
int16_t val = 0;
if (!unitReadReg(dev_, addr_, REG_INC_ENCODER, (uint8_t*)&val, 2))
ESP_LOGW(TAG, "readDelta failed at 0x%02X", addr_);
return val;
}
int16_t UnitScroll::readAbsolute() const {
if (!dev_) return 0;
int16_t val = 0;
if (!unitReadReg(dev_, addr_, REG_ENCODER, (uint8_t*)&val, 2))
ESP_LOGW(TAG, "readAbsolute failed at 0x%02X", addr_);
return val;
}
bool UnitScroll::isPressed() const {
if (!dev_) return false;
uint8_t val = 1;
if (!unitReadReg(dev_, addr_, REG_BUTTON, &val, 1))
ESP_LOGW(TAG, "isPressed read failed at 0x%02X", addr_);
return val == 0; // hardware: 0=pressed, 1=released
}
void UnitScroll::setLed(uint32_t rgb) {
if (!dev_) return;
// Wire format: [index=0, R, G, B]
uint8_t buf[4] = {
0x00,
(uint8_t)((rgb >> 16) & 0xFF), // R
(uint8_t)((rgb >> 8) & 0xFF), // G
(uint8_t)( rgb & 0xFF), // B
};
unitWriteReg(dev_, addr_, REG_LED, buf, 4);
}
void UnitScroll::resetEncoder() {
if (!dev_) return;
uint8_t one = 1;
unitWriteReg(dev_, addr_, REG_RESET, &one, 1);
}