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tyethtyeth
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add(driver): Add MLX90632 driver w/ debug info
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6 files changed

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‎library.properties‎

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Original file line numberDiff line numberDiff line change
@@ -1,10 +1,10 @@
11
name=Adafruit WipperSnapper
2-
version=1.0.0-beta.110
2+
version=1.0.0-beta.111
33
author=Adafruit
44
maintainer=Adafruit <adafruitio@adafruit.com>
55
sentence=Arduino application for Adafruit.io WipperSnapper
66
paragraph=Arduino application for Adafruit.io WipperSnapper
77
category=Communication
88
url=https://github.com/adafruit/Adafruit_Wippersnapper_Arduino
99
architectures=*
10-
depends=OmronD6T - Community Fork, SdFat - Adafruit Fork, Adafruit NeoPixel, Adafruit SPIFlash, ArduinoJson, Adafruit DotStar, Adafruit HDC302x, Adafruit INA219, Adafruit INA260 Library, Adafruit INA237 and INA238 Library, Adafruit LTR329 and LTR303, Adafruit LTR390 Library, Adafruit MCP3421, Adafruit NAU7802 Library, Adafruit SleepyDog Library, Adafruit TMP117, Adafruit TinyUSB Library, Adafruit AHTX0, Adafruit BME280 Library, Adafruit BMP280 Library, Adafruit BMP3XX Library, Adafruit DPS310, Adafruit DS248x, Adafruit SCD30, Adafruit SGP30 Sensor, Adafruit SGP40 Sensor, Sensirion I2C SCD4x, Sensirion I2C SEN5X, Sensirion I2C SEN66, arduino-sht, Adafruit Si7021 Library, Adafruit MQTT Library, Adafruit MS8607, Adafruit MCP9808 Library, Adafruit MCP9600 Library, Adafruit MPL115A2, Adafruit MPRLS Library, Adafruit TSL2591 Library, Adafruit_VL53L0X, Adafruit VL53L1X, STM32duino VL53L4CD, STM32duino VL53L4CX, Adafruit_VL6180X, Adafruit PM25 AQI Sensor, Adafruit VCNL4020 Library, Adafruit VCNL4040, Adafruit VCNL4200 Library, Adafruit VEML7700 Library, Adafruit LC709203F, Adafruit LPS2X, Adafruit LPS28, Adafruit LPS35HW, Adafruit seesaw Library, Adafruit BME680 Library, Adafruit MAX1704X, Adafruit ADT7410 Library, Adafruit HTS221, Adafruit HTU21DF Library, Adafruit HTU31D Library, Adafruit PCT2075, hp_BH1750, ENS160 - Adafruit Fork, Adafruit BusIO, Adafruit Unified Sensor, Sensirion Core, Adafruit GFX Library, Adafruit LED Backpack Library, Adafruit LiquidCrystal, Adafruit SH110X, Adafruit SSD1306
10+
depends=OmronD6T - Community Fork, SdFat - Adafruit Fork, Adafruit NeoPixel, Adafruit SPIFlash, ArduinoJson, Adafruit DotStar, Adafruit HDC302x, Adafruit INA219, Adafruit INA260 Library, Adafruit INA237 and INA238 Library, Adafruit LTR329 and LTR303, Adafruit LTR390 Library, Adafruit MCP3421, Adafruit MLX90632 Library, Adafruit NAU7802 Library, Adafruit SleepyDog Library, Adafruit TMP117, Adafruit TinyUSB Library, Adafruit AHTX0, Adafruit BME280 Library, Adafruit BMP280 Library, Adafruit BMP3XX Library, Adafruit DPS310, Adafruit DS248x, Adafruit SCD30, Adafruit SGP30 Sensor, Adafruit SGP40 Sensor, Sensirion I2C SCD4x, Sensirion I2C SEN5X, Sensirion I2C SEN66, arduino-sht, Adafruit Si7021 Library, Adafruit MQTT Library, Adafruit MS8607, Adafruit MCP9808 Library, Adafruit MCP9600 Library, Adafruit MPL115A2, Adafruit MPRLS Library, Adafruit TSL2591 Library, Adafruit_VL53L0X, Adafruit VL53L1X, STM32duino VL53L4CD, STM32duino VL53L4CX, Adafruit_VL6180X, Adafruit PM25 AQI Sensor, Adafruit VCNL4020 Library, Adafruit VCNL4040, Adafruit VCNL4200 Library, Adafruit VEML7700 Library, Adafruit LC709203F, Adafruit LPS2X, Adafruit LPS28, Adafruit LPS35HW, Adafruit seesaw Library, Adafruit BME680 Library, Adafruit MAX1704X, Adafruit ADT7410 Library, Adafruit HTS221, Adafruit HTU21DF Library, Adafruit HTU31D Library, Adafruit PCT2075, hp_BH1750, ENS160 - Adafruit Fork, Adafruit BusIO, Adafruit Unified Sensor, Sensirion Core, Adafruit GFX Library, Adafruit LED Backpack Library, Adafruit LiquidCrystal, Adafruit SH110X, Adafruit SSD1306

‎platformio.ini‎

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@@ -57,6 +57,7 @@ lib_deps =
5757
adafruit/Adafruit MCP3421
5858
adafruit/Adafruit MCP9808 Library
5959
adafruit/Adafruit MCP9600 Library
60+
adafruit/Adafruit MLX90632 Library
6061
adafruit/Adafruit MPL115A2
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adafruit/Adafruit MPRLS Library
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adafruit/Adafruit MS8607

‎src/Wippersnapper.h‎

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@@ -142,7 +142,7 @@
142142
#endif
143143

144144
#define WS_VERSION \
145-
"1.0.0-beta.110" ///< WipperSnapper app. version (semver-formatted)
145+
"1.0.0-beta.111" ///< WipperSnapper app. version (semver-formatted)
146146

147147
// Reserved Adafruit IO MQTT topics
148148
#define TOPIC_IO_THROTTLE "/throttle" ///< Adafruit IO Throttle MQTT Topic

‎src/components/i2c/WipperSnapper_I2C.cpp‎

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Original file line numberDiff line numberDiff line change
@@ -537,6 +537,17 @@ bool WipperSnapper_Component_I2C::initI2CDevice(
537537
_mcp9808->configureDriver(msgDeviceInitReq);
538538
drivers.push_back(_mcp9808);
539539
WS_DEBUG_PRINTLN("MCP9808 Initialized Successfully!");
540+
} else if (strcmp("mlx90632", msgDeviceInitReq->i2c_device_name) == 0) {
541+
_mlx90632 = new WipperSnapper_I2C_Driver_MLX90632(this->_i2c, i2cAddress);
542+
if (!_mlx90632->begin()) {
543+
WS_DEBUG_PRINTLN("ERROR: Failed to initialize MLX90632!");
544+
_busStatusResponse =
545+
wippersnapper_i2c_v1_BusResponse_BUS_RESPONSE_DEVICE_INIT_FAIL;
546+
return false;
547+
}
548+
_mlx90632->configureDriver(msgDeviceInitReq);
549+
drivers.push_back(_mlx90632);
550+
WS_DEBUG_PRINTLN("MLX90632 Initialized Successfully!");
540551
} else if (strcmp("mpl115a2", msgDeviceInitReq->i2c_device_name) == 0) {
541552
_mpl115a2 = new WipperSnapper_I2C_Driver_MPL115A2(this->_i2c, i2cAddress);
542553
if (!_mpl115a2->begin()) {

‎src/components/i2c/WipperSnapper_I2C.h‎

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@@ -50,6 +50,7 @@
5050
#include "drivers/WipperSnapper_I2C_Driver_MAX17048.h"
5151
#include "drivers/WipperSnapper_I2C_Driver_MCP3421.h"
5252
#include "drivers/WipperSnapper_I2C_Driver_MCP9808.h"
53+
#include "drivers/WipperSnapper_I2C_Driver_MLX90632.h"
5354
#include "drivers/WipperSnapper_I2C_Driver_MPL115A2.h"
5455
#include "drivers/WipperSnapper_I2C_Driver_MPRLS.h"
5556
#include "drivers/WipperSnapper_I2C_Driver_MS8607.h"
@@ -180,6 +181,7 @@ class WipperSnapper_Component_I2C {
180181
WipperSnapper_I2C_Driver_LTR390 *_ltr390 = nullptr;
181182
WipperSnapper_I2C_Driver_MCP3421 *_mcp3421 = nullptr;
182183
WipperSnapper_I2C_Driver_MCP9808 *_mcp9808 = nullptr;
184+
WipperSnapper_I2C_Driver_MLX90632 *_mlx90632 = nullptr;
183185
WipperSnapper_I2C_Driver_MPL115A2 *_mpl115a2 = nullptr;
184186
WipperSnapper_I2C_Driver_MPRLS *_mprls = nullptr;
185187
WipperSnapper_I2C_Driver_MS8607 *_ms8607 = nullptr;

‎src/components/i2c/drivers/WipperSnapper_I2C_Driver_MLX90632.h‎

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1+
/*!
2+
* @file WipperSnapper_I2C_Driver_MLX90632.h
3+
*
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* Device driver for a Melexis MLX90632 thermal FIR sensor.
5+
*
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* Adafruit invests time and resources providing this open source code,
7+
* please support Adafruit and open-source hardware by purchasing
8+
* products from Adafruit!
9+
*
10+
* Copyright (c) Tyeth Gundry 2025 for Adafruit Industries.
11+
*
12+
* MIT license, all text here must be included in any redistribution.
13+
*
14+
*/
15+
16+
#ifndef WipperSnapper_I2C_Driver_MLX90632_H
17+
#define WipperSnapper_I2C_Driver_MLX90632_H
18+
19+
#include <Adafruit_MLX90632.h>
20+
21+
#include "WipperSnapper_I2C_Driver.h"
22+
23+
/**************************************************************************/
24+
/*!
25+
@brief Sensor driver for the Melexis MLX90632 temperature sensor.
26+
*/
27+
/**************************************************************************/
28+
class WipperSnapper_I2C_Driver_MLX90632 : public WipperSnapper_I2C_Driver {
29+
public:
30+
/*******************************************************************************/
31+
/*!
32+
@brief Constructor for an MLX90632 sensor.
33+
@param i2c
34+
The I2C interface.
35+
@param sensorAddress
36+
7-bit device address.
37+
*/
38+
/*******************************************************************************/
39+
WipperSnapper_I2C_Driver_MLX90632(TwoWire *i2c, uint16_t sensorAddress)
40+
: WipperSnapper_I2C_Driver(i2c, sensorAddress) {
41+
_i2c = i2c;
42+
_sensorAddress = sensorAddress;
43+
_deviceTemp = NAN;
44+
_objectTemp = NAN;
45+
_lastRead = 0;
46+
}
47+
48+
/*******************************************************************************/
49+
/*!
50+
@brief Destructor for an MLX90632 sensor.
51+
*/
52+
/*******************************************************************************/
53+
~WipperSnapper_I2C_Driver_MLX90632() { delete _mlx90632; }
54+
55+
/*******************************************************************************/
56+
/*!
57+
@brief Initializes the MLX90632 sensor and begins I2C.
58+
@returns True if initialized successfully, False otherwise.
59+
*/
60+
/*******************************************************************************/
61+
bool begin() {
62+
_mlx90632 = new Adafruit_MLX90632();
63+
// attempt to initialize MLX90632
64+
if (!_mlx90632->begin(_sensorAddress, _i2c))
65+
return false;
66+
67+
return ConfigureAndPrintSensorInfo();
68+
}
69+
70+
/*******************************************************************************/
71+
/*!
72+
@brief Configures the MLX90632 sensor and prints its information.
73+
@returns True if configuration fetching and setting were successful.
74+
*/
75+
/*******************************************************************************/
76+
bool ConfigureAndPrintSensorInfo() {
77+
// Reset the device
78+
if (!_mlx90632->reset()) {
79+
WS_PRINTER.println(F("Device reset failed"));
80+
while (1) { delay(10); }
81+
}
82+
WS_PRINTER.println(F("Device reset: SUCCESS"));
83+
84+
uint64_t productID = _mlx90632->getProductID();
85+
WS_PRINTER.print(F("Product ID: 0x"));
86+
WS_PRINTER.print((uint32_t)(productID >> 32), HEX);
87+
WS_PRINTER.println((uint32_t)(productID & 0xFFFFFFFF), HEX);
88+
89+
uint16_t productCode = _mlx90632->getProductCode();
90+
WS_PRINTER.print(F("Product Code: 0x"));
91+
WS_PRINTER.println(productCode, HEX);
92+
93+
uint16_t eepromVersion = _mlx90632->getEEPROMVersion();
94+
WS_PRINTER.print(F("EEPROM Version: 0x"));
95+
WS_PRINTER.println(eepromVersion, HEX);
96+
97+
// Decode product code bits
98+
uint8_t fov = (productCode >> 8) & 0x3;
99+
uint8_t package = (productCode >> 5) & 0x7;
100+
uint8_t accuracy = productCode & 0x1F;
101+
102+
WS_PRINTER.print(F("FOV: "));
103+
WS_PRINTER.println(fov == 0 ? F("50°") : F("Unknown"));
104+
105+
WS_PRINTER.print(F("Package: "));
106+
WS_PRINTER.println(package == 1 ? F("SFN 3x3") : F("Unknown"));
107+
108+
WS_PRINTER.print(F("Accuracy: "));
109+
if (accuracy == 1) {
110+
WS_PRINTER.println(F("Medical"));
111+
} else if (accuracy == 2) {
112+
WS_PRINTER.println(F("Standard"));
113+
} else {
114+
WS_PRINTER.println(F("Unknown"));
115+
}
116+
117+
// Set and get mode - choose one:
118+
WS_PRINTER.println(F("\n--- Mode Settings ---"));
119+
if (!_mlx90632->setMode(MLX90632_MODE_CONTINUOUS)) {
120+
// if (!_mlx90632->setMode(MLX90632_MODE_STEP)) { // Uncomment for step mode testing
121+
// if (!_mlx90632->setMode(MLX90632_MODE_SLEEPING_STEP)) { // Uncomment for sleeping step mode testing
122+
WS_PRINTER.println(F("Failed to set mode"));
123+
while (1) { delay(10); }
124+
}
125+
126+
//TODO: use Step mode?
127+
mlx90632_mode_t currentMode = _mlx90632->getMode();
128+
WS_PRINTER.print(F("Current mode: "));
129+
switch (currentMode) {
130+
case MLX90632_MODE_HALT:
131+
WS_PRINTER.println(F("Halt"));
132+
break;
133+
case MLX90632_MODE_SLEEPING_STEP:
134+
WS_PRINTER.println(F("Sleeping Step"));
135+
break;
136+
case MLX90632_MODE_STEP:
137+
WS_PRINTER.println(F("Step"));
138+
break;
139+
case MLX90632_MODE_CONTINUOUS:
140+
WS_PRINTER.println(F("Continuous"));
141+
break;
142+
default:
143+
WS_PRINTER.println(F("Unknown"));
144+
}
145+
146+
// set accuracy mode based on medical if detected
147+
if (accuracy == 1) {
148+
// Set and get measurement select (medical)
149+
WS_PRINTER.println(F("\n--- Measurement Select Settings ---"));
150+
if (!_mlx90632->setMeasurementSelect(MLX90632_MEAS_MEDICAL)) {
151+
WS_PRINTER.println(F("Failed to set measurement select to Medical"));
152+
while (1) { delay(10); }
153+
}
154+
155+
mlx90632_meas_select_t currentMeasSelect = _mlx90632->getMeasurementSelect();
156+
WS_PRINTER.print(F("Current measurement select: "));
157+
switch (currentMeasSelect) {
158+
case MLX90632_MEAS_MEDICAL:
159+
WS_PRINTER.println(F("Medical"));
160+
break;
161+
case MLX90632_MEAS_EXTENDED_RANGE:
162+
WS_PRINTER.println(F("Extended Range"));
163+
break;
164+
default:
165+
WS_PRINTER.println(F("Unknown"));
166+
}
167+
}
168+
169+
// Set and get refresh rate (default to 2Hz)
170+
WS_PRINTER.println(F("\n--- Refresh Rate Settings ---"));
171+
if (!_mlx90632->setRefreshRate(MLX90632_REFRESH_2HZ)) {
172+
WS_PRINTER.println(F("Failed to set refresh rate to 2Hz"));
173+
while (1) { delay(10); }
174+
}
175+
176+
mlx90632_refresh_rate_t currentRefreshRate = _mlx90632->getRefreshRate();
177+
WS_PRINTER.print(F("Current refresh rate: "));
178+
switch (currentRefreshRate) {
179+
case MLX90632_REFRESH_0_5HZ:
180+
WS_PRINTER.println(F("0.5 Hz"));
181+
break;
182+
case MLX90632_REFRESH_1HZ:
183+
WS_PRINTER.println(F("1 Hz"));
184+
break;
185+
case MLX90632_REFRESH_2HZ:
186+
WS_PRINTER.println(F("2 Hz"));
187+
break;
188+
case MLX90632_REFRESH_4HZ:
189+
WS_PRINTER.println(F("4 Hz"));
190+
break;
191+
case MLX90632_REFRESH_8HZ:
192+
WS_PRINTER.println(F("8 Hz"));
193+
break;
194+
case MLX90632_REFRESH_16HZ:
195+
WS_PRINTER.println(F("16 Hz"));
196+
break;
197+
case MLX90632_REFRESH_32HZ:
198+
WS_PRINTER.println(F("32 Hz"));
199+
break;
200+
case MLX90632_REFRESH_64HZ:
201+
WS_PRINTER.println(F("64 Hz"));
202+
break;
203+
default:
204+
WS_PRINTER.println(F("Unknown"));
205+
}
206+
207+
// Clear new data flag before starting continuous measurements
208+
WS_PRINTER.println(F("\\n--- Starting Continuous Measurements ---"));
209+
if (!_mlx90632->resetNewData()) {
210+
WS_PRINTER.println(F("Failed to reset new data flag"));
211+
while (1) { delay(10); }
212+
}
213+
return true;
214+
}
215+
216+
/*******************************************************************************/
217+
/*!
218+
@brief Checks if sensor was read within last 1s, or is the first read.
219+
@returns True if the sensor was recently read, False otherwise.
220+
*/
221+
/*******************************************************************************/
222+
bool HasBeenReadInLast200ms() {
223+
return _lastRead != 0 && millis() - _lastRead < 200;
224+
}
225+
226+
/*******************************************************************************/
227+
/*!
228+
@brief Reads the sensor.
229+
@returns True if the sensor was read successfully, False otherwise.
230+
*/
231+
/*******************************************************************************/
232+
bool ReadSensorData() {
233+
bool result=false;
234+
235+
// Only check new data flag - much more efficient for continuous mode
236+
if (_mlx90632->isNewData()) {
237+
WS_PRINTER.print(F("New Data Available - Cycle Position: "));
238+
WS_PRINTER.println(_mlx90632->readCyclePosition());
239+
240+
// Read ambient temperature
241+
_deviceTemp = _mlx90632->getAmbientTemperature();
242+
WS_PRINTER.print(F("Ambient Temperature: "));
243+
WS_PRINTER.print(_deviceTemp, 4);
244+
WS_PRINTER.println(F(" °C"));
245+
246+
// Read object temperature
247+
_objectTemp = _mlx90632->getObjectTemperature();
248+
WS_PRINTER.print(F("Object Temperature: "));
249+
if (isnan(_objectTemp)) {
250+
WS_PRINTER.println(F("NaN (invalid cycle position)"));
251+
} else {
252+
WS_PRINTER.print(_objectTemp, 4);
253+
WS_PRINTER.println(F(" °C"));
254+
}
255+
result=true;
256+
// Reset new data flag after reading
257+
if (!_mlx90632->resetNewData()) {
258+
WS_PRINTER.println(F("Failed to reset new data flag"));
259+
}
260+
261+
WS_PRINTER.println(); // Add blank line between readings
262+
} else {
263+
WS_PRINTER.println(F("No new data available, skipping read"));
264+
265+
}
266+
267+
// Check if we need to trigger a new measurement for step modes
268+
mlx90632_mode_t currentMode = _mlx90632->getMode();
269+
if (currentMode == MLX90632_MODE_STEP || currentMode == MLX90632_MODE_SLEEPING_STEP) {
270+
// Trigger single measurement (SOC bit) for step modes
271+
if (!_mlx90632->startSingleMeasurement()) {
272+
WS_PRINTER.println(F("Failed to start single measurement"));
273+
}
274+
}
275+
276+
_lastRead = millis();
277+
return result;
278+
}
279+
280+
/*******************************************************************************/
281+
/*!
282+
@brief Gets the MLX90632's current temperature.
283+
@param tempEvent
284+
Pointer to an Adafruit_Sensor event.
285+
@returns True if the temperature was obtained successfully, False
286+
otherwise.
287+
*/
288+
/*******************************************************************************/
289+
bool getEventAmbientTemp(sensors_event_t *tempEvent) {
290+
if (ReadSensorData() && _deviceTemp != NAN) {
291+
//TODO: check max/min or error values in datasheet
292+
// if (_deviceTemp < -40 || _deviceTemp > 125) {
293+
// WS_PRINTER.println(F("Invalid ambient temperature"));
294+
// return false;
295+
// }
296+
// if the sensor was read recently, return the cached temperature
297+
tempEvent->temperature = _deviceTemp;
298+
return true;
299+
}
300+
return false; // sensor not read recently, return false
301+
}
302+
303+
/*******************************************************************************/
304+
/*!
305+
@brief Gets the MLX90632's object temperature.
306+
@param tempEvent
307+
Pointer to an Adafruit_Sensor event.
308+
@returns True if the temperature was obtained successfully, False
309+
otherwise.
310+
*/
311+
/*******************************************************************************/
312+
bool getEventObjectTemp(sensors_event_t *tempEvent) {
313+
if (ReadSensorData() && _objectTemp != NAN) {
314+
// if the sensor was read recently, return the cached temperature
315+
tempEvent->temperature = _objectTemp;
316+
return true;
317+
}
318+
return false; // sensor not read recently, return false
319+
}
320+
321+
protected:
322+
double _deviceTemp; ///< Device temperature in Celsius
323+
double _objectTemp; ///< Object temperature in Celsius
324+
uint32_t _lastRead; ///< Last time the sensor was read in milliseconds
325+
Adafruit_MLX90632 *_mlx90632 = nullptr; ///< MLX90632 object
326+
};
327+
328+
#endif // WipperSnapper_I2C_Driver_MLX90632

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