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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,250 @@ | ||
| /* | ||
| Example: UnitKmeterISO | ||
| SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD | ||
| SPDX-License-Identifier: MIT | ||
| */ | ||
|
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| // #define USING_M5HAL // When using M5HAL | ||
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| #include <M5Unified.h> | ||
| #include <M5UnitUnified.h> | ||
| #include <unit/unit_KmeterISO.hpp> | ||
| #if !defined(USING_M5HAL) | ||
| #include <Wire.h> | ||
| #endif | ||
|
|
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| namespace { | ||
| auto& display = M5.Display; | ||
| M5Canvas canvas[2]; | ||
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| m5::unit::UnitUnified Units; | ||
| m5::unit::UnitKmeterISO unit; | ||
|
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| // M5_KMeter::error_code_t* errdata_buf; | ||
| constexpr size_t avg_count = 1 << 5; | ||
| constexpr size_t delay_msec = 50; | ||
| float* tempdata_buf; | ||
| size_t tempdata_count; | ||
| size_t tempdata_idx = 0; | ||
| int graph_height; | ||
| int graph_y_offset; | ||
| float min_temp; | ||
| float max_temp; | ||
| float avg_buf[avg_count]; | ||
| size_t avg_index = 0; | ||
| int vertline_idx = 0; | ||
| } // namespace | ||
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| void setup() { | ||
| M5.begin(); | ||
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| m5::utility::delay(3000); | ||
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| auto pin_num_sda = M5.getPin(m5::pin_name_t::port_a_sda); | ||
| auto pin_num_scl = M5.getPin(m5::pin_name_t::port_a_scl); | ||
| M5_LOGI("getPin: SDA:%u SCL:%u", pin_num_sda, pin_num_scl); | ||
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| #if defined(USING_M5HAL) | ||
| #pragma message "Using M5HAL" | ||
| // Using M5HAL | ||
| m5::hal::bus::I2CBusConfig i2c_cfg; | ||
| i2c_cfg.pin_sda = m5::hal::gpio::getPin(pin_num_sda); | ||
| i2c_cfg.pin_scl = m5::hal::gpio::getPin(pin_num_scl); | ||
| auto i2c_bus = m5::hal::bus::i2c::getBus(i2c_cfg); | ||
| M5_LOGI("Bus:%d", i2c_bus.has_value()); | ||
| if (!Units.add(unit, i2c_bus ? i2c_bus.value() : nullptr) || | ||
| !Units.begin()) { | ||
| M5_LOGE("Failed to begin"); | ||
| display.clear(TFT_RED); | ||
| while (true) { | ||
| m5::utility::delay(10000); | ||
| } | ||
| } | ||
| #else | ||
| #pragma message "Using Wire" | ||
| // Using TwoWire | ||
| Wire.begin(pin_num_sda, pin_num_scl, 100000U); | ||
| for (int i = 0; i < 10; ++i) { | ||
| Wire.beginTransmission(unit.address()); | ||
| auto wret = Wire.endTransmission(); | ||
| M5_LOGW(">>%d", wret); | ||
| delay(10); | ||
| } | ||
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| if (!Units.add(unit, Wire) || !Units.begin()) { | ||
| M5_LOGE("Failed to begin"); | ||
| display.clear(TFT_RED); | ||
| while (true) { | ||
| m5::utility::delay(10000); | ||
| } | ||
| } | ||
| #endif | ||
|
|
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| M5_LOGI("M5UnitUnified has been begun"); | ||
| M5_LOGI("%s", Units.debugInfo().c_str()); | ||
| display.clear(TFT_DARKGREEN); | ||
|
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| // | ||
| display.clear(); | ||
| display.setEpdMode(epd_mode_t::epd_fast); | ||
| if (display.width() > display.height()) { | ||
| display.setRotation(display.getRotation() ^ 1); | ||
| } | ||
| display.setFont(&fonts::Font4); | ||
| display.setTextColor((uint32_t)~display.getBaseColor(), | ||
| display.getBaseColor()); | ||
| display.setTextDatum(textdatum_t::top_right); | ||
| display.setTextPadding(display.textWidth("1888.88", &fonts::Font4)); | ||
| graph_y_offset = display.fontHeight(&fonts::Font4); | ||
|
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| graph_height = display.height() - graph_y_offset; | ||
|
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| for (int i = 0; i < 2; ++i) { | ||
| canvas[i].setColorDepth(display.getColorDepth()); | ||
| canvas[i].createSprite(1, graph_height); | ||
| canvas[i].setTextDatum(textdatum_t::bottom_right); | ||
| canvas[i].setTextColor(TFT_LIGHTGRAY); | ||
| } | ||
|
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| tempdata_count = display.width() + 1; | ||
| tempdata_buf = (float*)malloc(tempdata_count * sizeof(float)); | ||
|
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| int32_t tmp{}; | ||
| float temperature = unit.readCelsiusTemperature(tmp) | ||
| ? m5::unit::UnitKmeterISO::conversion(tmp) | ||
| : 0.0f; | ||
| min_temp = max_temp = temperature; | ||
| for (size_t i = 0; i < tempdata_count; ++i) { | ||
| tempdata_buf[i] = temperature; | ||
| } | ||
| for (size_t i = 0; i < avg_count; ++i) { | ||
| avg_buf[i] = temperature; | ||
| } | ||
| } | ||
|
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| void drawGraph(void) { | ||
| float min_t = INT16_MAX; | ||
| float max_t = INT16_MIN; | ||
| for (int i = 0; i < tempdata_count; ++i) { | ||
| float t = tempdata_buf[i]; | ||
| if (min_t > t) { | ||
| min_t = t; | ||
| } | ||
| if (max_t < t) { | ||
| max_t = t; | ||
| } | ||
| } | ||
| min_temp = (min_temp + (min_t - 0.5f)) / 2; | ||
| max_temp = (max_temp + (max_t + 0.5f)) / 2; | ||
|
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| float magnify = (float)graph_height / (max_temp - min_temp); | ||
|
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| static constexpr int steps[] = {1, 2, 5, 10, 20, | ||
| 50, 100, 200, 500, INT_MAX}; | ||
| int step_index = 0; | ||
| while (magnify * steps[step_index] < 10) { | ||
| ++step_index; | ||
| } | ||
| int step = steps[step_index]; | ||
| bool flip = 0; | ||
|
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| canvas[flip].clear(display.getBaseColor()); | ||
|
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| int gauge = ((int)min_temp / step) * step; | ||
| do { | ||
| canvas[flip].drawPixel(0, graph_height - ((gauge - min_temp) * magnify), | ||
| TFT_DARKGRAY); | ||
| } while (max_temp > (gauge += step)); | ||
|
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| size_t buffer_len = canvas[flip].bufferLength(); | ||
| auto buffer = (uint8_t*)alloca(buffer_len); | ||
| memcpy(buffer, canvas[flip].getBuffer(), buffer_len); | ||
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| int drawindex = tempdata_idx; | ||
| int draw_x = -1; | ||
| int y0 = 0; | ||
|
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| if (++vertline_idx >= 20) { | ||
| vertline_idx = 0; | ||
| } | ||
| int vidx = vertline_idx; | ||
|
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| display.startWrite(); | ||
| do { | ||
| if (++vidx >= 20) { | ||
| vidx = 0; | ||
| memset(canvas[flip].getBuffer(), 0x55, buffer_len); | ||
| } else { | ||
| memcpy(canvas[flip].getBuffer(), buffer, buffer_len); | ||
| } | ||
|
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| int y1 = y0; | ||
| y0 = graph_height - ((tempdata_buf[drawindex] - min_temp) * magnify); | ||
| if (++drawindex >= tempdata_count) { | ||
| drawindex = 0; | ||
| } | ||
|
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| if (display.width() - draw_x < 24) { | ||
| gauge = ((int)min_temp / step) * step; | ||
| do { | ||
| canvas[flip].drawNumber( | ||
| (int)gauge, display.width() - draw_x, | ||
| graph_height - ((gauge - min_temp) * magnify)); | ||
| } while (max_temp > (gauge += step)); | ||
| } | ||
|
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| canvas[flip].setColor(~display.getBaseColor()); | ||
| // : 0xFF0000u); | ||
| int y_min = y0, y_max = y1; | ||
| if (y_min > y_max) { | ||
| std::swap(y_min, y_max); | ||
| } | ||
| canvas[flip].drawFastVLine(0, y_min, y_max - y_min + 1); | ||
| canvas[flip].pushSprite(&display, draw_x, graph_y_offset); | ||
| flip = !flip; | ||
| } while (++draw_x < display.width()); | ||
| display.endWrite(); | ||
| } | ||
|
|
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| void loop() { | ||
| M5.update(); | ||
| Units.update(); | ||
| if (M5.BtnA.wasClicked()) { | ||
| } | ||
|
|
||
| if (unit.updated()) { | ||
| // M5_LOGI("\n>Current:%f", std::fabs(raw) * correction); | ||
| } | ||
|
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| float temperature = unit.celsiusTemperature(); | ||
|
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| avg_buf[avg_index] = temperature; | ||
| if (++avg_index >= avg_count) { | ||
| avg_index = 0; | ||
| } | ||
| float avg_temp = 0; | ||
| for (size_t i = 0; i < avg_count; ++i) { | ||
| size_t k = abs((int)(i - avg_index) * 2 + 1); | ||
| if (k > avg_count) { | ||
| k = avg_count * 2 - k; | ||
| } | ||
| avg_temp += avg_buf[i] * k / avg_count; | ||
| } | ||
|
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| tempdata_buf[tempdata_idx] = 2 * avg_temp / avg_count; | ||
| if (++tempdata_idx >= tempdata_count) { | ||
| tempdata_idx = 0; | ||
| } | ||
|
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| drawGraph(); | ||
|
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| static uint32_t prev_msec; | ||
| uint32_t msec = millis(); | ||
| if (msec - prev_msec < delay_msec) { | ||
| M5_LOGI("\n>Temp:%6.2f", temperature); | ||
| m5gfx::delay(delay_msec - (msec - prev_msec)); | ||
| } | ||
| prev_msec = msec; | ||
| } |
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