Design For A Cause 2021

Design For A Cause 2021https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/Arduino is challenging Community members to design the most creative, and altruistic solution for times of duress and global disasters. You can build a project to combat global droughts, flooding, world hunger, micro plastics, issues with long term COVID-en-USTelligent Community 12<link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/blog-2---arduino-air-quality-and-humidity-measurement-device-building-the-project-hardware-software?CommentId=d0cd693a-f7d7-4eac-a74c-1623c5de8183</link><pubDate>Sun, 01 Mar 2026 22:36:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:d0cd693a-f7d7-4eac-a74c-1623c5de8183</guid><dc:creator>stanto</dc:creator><description>Yeah I was also interested in seeing the Sharp's GP2Y1010AU0F being used, I have one of these that I'm trying to get working at the moment and it's struggling to initiate, doesn't look like meera got any further?</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/ace---blog-8---offloading-computation-to-lsm6ds3?CommentId=b6b000a3-e627-4c26-8484-f548e29e6e7f</link><pubDate>Sun, 03 Sep 2023 12:34:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:b6b000a3-e627-4c26-8484-f548e29e6e7f</guid><dc:creator>TobiasR</dc:creator><description>Should notice I tried the SparkFun sample (just changed a bit so it fits the correct I2C address. This sample code also doesn't trigger any free-fall events: #include "LSM6DS3.h" #include "Wire.h" #include "SPI.h" LSM6DS3 myIMU ( I2C_MODE, 0x 6A ) ; void setup () { Serial . begin ( 9600 ) ; while ( !Serial ) { ; // wait for serial port to connect. Needed for native USB port only } Serial . println ( "Sketch came out of reset.\n" ) ; if ( myIMU . begin () != 0 ) { Serial . print ( "Error at begin().\n" ) ; } else { Serial . print ( "\nbeginCore() passed.\n" ) ; } uint8_t errorAccumulator = 0 ; uint8_t dataToWrite = 0 ; //Setup the accelerometer****************************** dataToWrite = 0 ; //Start Fresh! dataToWrite |= LSM6DS3_ACC_GYRO_BW_XL_200Hz; dataToWrite |= LSM6DS3_ACC_GYRO_FS_XL_2g; dataToWrite |= LSM6DS3_ACC_GYRO_ODR_XL_416Hz; //Now, write the patched together data errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_CTRL1_XL, dataToWrite ) ; errorAccumulator += myIMU . readRegister ( &dataToWrite, LSM6DS3_ACC_GYRO_CTRL4_C ) ; // Write 00h into WAKE_UP_DUR errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_WAKE_UP_DUR, 0x 00 ) ; // Set FF threshold (FF_THS[2:0] = 011b) // Set six samples event duration (FF_DUR[5:0] = 000110b) // Write 33h into FREE_FALL errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_FREE_FALL, 0x 33 ) ; // FF interrupt driven to INT1 pin // Write 10h into MD1_CFG errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_MD1_CFG, 0x 10 ) ; // Also route to INT2 pin // Write 10h into MD1_CFG errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_MD2_CFG, 0x 10 ) ; // Latch interrupt // Write 01h into TAP_CFG errorAccumulator += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_TAP_CFG1, 0x 01 ) ; if ( errorAccumulator ) { Serial . println ( "Problem configuring the device." ) ; } else { Serial . println ( "Device O.K." ) ; } } void loop () { uint8_t readDataByte = 0 ; //Read the wake-up source register myIMU . readRegister ( &readDataByte, LSM6DS3_ACC_GYRO_WAKE_UP_SRC ) ; //Mask off the FF_IA bit for free-fall detection readDataByte &= 0x 20 ; //Check for free-fall if ( readDataByte ) { //debounce delay ( 10 ) ; Serial . println ( "Interrupt caught. Free fall detected." ) ; } }</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/ace---blog-8---offloading-computation-to-lsm6ds3?CommentId=a9ca54b6-4524-46a4-96dd-914d8185bebb</link><pubDate>Sun, 03 Sep 2023 12:21:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:a9ca54b6-4524-46a4-96dd-914d8185bebb</guid><dc:creator>TobiasR</dc:creator><description>Thanks for the nice blog post. I'm trying to detect free falls with my XIAO nRF52840 which has the LSM6DS3 included. However, I can't make it work to receive an interrupt for this. (Double) Taps work fine but the free-fall detection never interrupts anything. Even the sample code from the libraries doesn't result anything (it compiles, just does not trigger). I even asked in forums like here https://forum.arduino.cc/t/lsm6ds3-free-fall-detection-not-working/1163290/7 and https://forum.seeedstudio.com/t/xiao-nrf52840-free-fall-detection-not-working/272103 but you seem to be the "reference to go": My current code looks like that, just in case you see anything I messed up or forgot. Thanks for any help! --- #include "LSM6DS3.h" #include "Wire.h" LSM6DS3 myIMU ( I2C_MODE, 0x 6A ) ; #define int1Pin PIN_LSM6DS3TR_C_INT1 volatile uint8_t interruptCount = 0 ; // Amount of received interrupts uint8_t prevInterruptCount = 0 ; // Interrupt Counter from last loop void setup () { Serial . begin ( 9600 ) ; while ( !Serial ) { ; // wait for serial port to connect. Needed for native USB port only } Serial . println ( "--- START ---" ) ; pinMode ( LED_RED, OUTPUT ) ; pinMode ( LED_GREEN, OUTPUT ) ; pinMode ( LED_BLUE, OUTPUT ) ; setLedRGB ( false , false , true ) ; // set blue led myIMU . settings . accelEnabled = 1 ; myIMU . settings . tempEnabled = 1 ; myIMU . settings . gyroEnabled = 1 ; // Gyro currently not used, disabled to save power if ( myIMU . begin () != 0 ) { Serial . println ( "IMU error" ) ; } else { Serial . println ( "IMU OK!" ) ; } setupFreeFallInterrupt () ; pinMode ( int1Pin, INPUT ) ; attachInterrupt ( digitalPinToInterrupt ( int1Pin ) , int1ISR, RISING ) ; } void loop () { setLedRGB ( false , false , true ) ; // reset led to blue only Serial . print ( "\Iterrupt Counter: " ) ; Serial . println ( interruptCount ) ; // if interrupt was received in this cycle if ( interruptCount > prevInterruptCount ) { Serial . println ( "\Interrupt received!" ) ; setLedRGB ( false , true , false ) ; // set green only } prevInterruptCount = interruptCount; if ( interruptCount >= 5 ) { // Trigger System OFF after 5 interrupts goToPowerOff () ; } myIMU . writeRegister ( LSM6DS3_ACC_GYRO_TAP_CFG1, 0x 01 ) ; // LATCHED delay ( 500 ) ; } // -------------------- System ------------------------- // void goToPowerOff () { setLedRGB ( false , false , false ) ; Serial . println ( "Going to System OFF" ) ; setupFreeFallInterrupt () ; // not needed here, if already applied.. delay ( 100 ) ; // delay seems important to apply settings, before going to System OFF //Ensure interrupt pin from IMU is set to wake up device nrf_gpio_cfg_sense_input ( digitalPinToInterrupt ( int1Pin ) , NRF_GPIO_PIN_PULLDOWN, NRF_GPIO_PIN_SENSE_HIGH ) ; // Trigger System OFF NRF_POWER -> SYSTEMOFF = 1 ; } // -------------------- Interrupts ------------------------- // void setupFreeFallInterrupt () { uint8_t error = 0 ; uint8_t dataToWrite = 0 ; dataToWrite |= LSM6DS3_ACC_GYRO_BW_XL_100Hz; // 0000 0001 200Hz dataToWrite |= LSM6DS3_ACC_GYRO_FS_XL_4g; // 0000 0000 2g dataToWrite |= LSM6DS3_ACC_GYRO_ODR_XL_104Hz; // 0100 0000 104Hz error += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_CTRL1_XL, dataToWrite ) ; error += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_WAKE_UP_SRC, 0b 00100000 ) ; error += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_TAP_CFG1, 0b 00000001 ) ; error += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_WAKE_UP_DUR, 0b 00000000 ) ; error += myIMU . writeRegister ( LSM6DS3_ACC_GYRO_FREE_FALL, 0b 000110 ) ; if ( error ) { Serial . println ( "Problem configuring the device." ) ; } else { Serial . println ( "Device O.K." ) ; } } void int1ISR () { interruptCount++; } // -------------------- Utilities ------------------------- // void setLedRGB ( bool red , bool green , bool blue) { if ( !blue ) { digitalWrite ( LED_BLUE, HIGH ) ; } else { digitalWrite ( LED_BLUE, LOW ) ; } if ( !green ) { digitalWrite ( LED_GREEN, HIGH ) ; } else { digitalWrite ( LED_GREEN, LOW ) ; } if ( !red ) { digitalWrite ( LED_RED, HIGH ) ; } else { digitalWrite ( LED_RED, LOW ) ; } }</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/building-an-android-app-for-the-garden-controller?CommentId=8dd3ddd7-4fad-444f-a677-b25a8ce55701</link><pubDate>Mon, 06 Feb 2023 20:40:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:8dd3ddd7-4fad-444f-a677-b25a8ce55701</guid><dc:creator>sebulox</dc:creator><description>ok, found the previous posts, yes Arduino Nano. Will try to build the thing and I let you know. Have some ideas to build on that if I get it to work.</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/building-an-android-app-for-the-garden-controller?CommentId=8798842a-b385-4bee-aeae-9963c4ed40ea</link><pubDate>Mon, 06 Feb 2023 20:35:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:8798842a-b385-4bee-aeae-9963c4ed40ea</guid><dc:creator>sebulox</dc:creator><description>Very interesing project. how does the garden bluetooth device that you are controlling with android look like? Using arduino or something like that? Would be pleased to get more details.</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/trakcore-4-ai-assisted-posture-modification---enabling-imu-and-ble-with-edge-impulse-ml-on-arduino-nano-33-iot?CommentId=0123e4b8-2a6b-4842-bc66-22227101e96d</link><pubDate>Wed, 14 Sep 2022 17:32:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:0123e4b8-2a6b-4842-bc66-22227101e96d</guid><dc:creator>Francesca98</dc:creator><description>Hi! In part #4, in particular in the "publishing data over BLE" part, the code is missing the declaration of the variables "oldposture" and "update posture". We're having problems introducing them, we were wondering if you could help us. By the way you're job is amazing, congrats!</description></item><item><title /><link>https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/remote-agriculture-solution-02-components-and-design-structure?CommentId=ddcf93b0-101b-49f3-bffd-970749edcd0e</link><pubDate>Wed, 20 Jul 2022 16:31:00 GMT</pubDate><guid isPermaLink="false">93d5dcb4-84c2-446f-b2cb-99731719e767:ddcf93b0-101b-49f3-bffd-970749edcd0e</guid><dc:creator>mario1015</dc:creator><description>Great Project @aarian2134</description></item><item><title>File: ACE #2 Power modes demonstrationhttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/146084Sun, 19 Jun 2022 09:07:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:a84f755f-7e4b-4ac8-88a5-4c844d1dcf10amgalbuThis video is related to blog ACE #2aceBlog Post: Open Source EMDR Machine #0. The Whole Bloghttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/b/blog/posts/open-source-emdr-machine-0-the-whole-blogSun, 19 Dec 2021 04:39:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:781af61c-abf6-4a7c-b04a-99a1ff45572ailvyanyatka#1. Initial Plan #2. Installation of the necessary software and libraries #3. Electronic components #4. Breadboard layout and Schematics #5. Bluetooth trouble #6. Updated breadboard layout and design changes #7. Prototype functionality and a demo video #8. How it looks like. A lot of pictures #9. Explanation and examples of the code #10. Update on the tappers functionality #11. An update on the Software Application (Windows and Android)design for a cause 2021health careopen source emdr machinedesign for a cause - design challengemedicaldesign for a causearduino nano 33 iotdesign_for_a_cause_2021Wiki: Documentshttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/w/documentsSat, 20 Nov 2021 18:27:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0d2e5961-4437-4c57-b986-4ce2a7be1a25File: EnergySaverHighScore Power Outlethttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143967Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ac422369-382b-4f8a-9b7e-ce9d38f8c689bernhardmayerEnergySaverHighScore Power Outlet loading a batterymqttgrid-powerarduinoenergysaverhighscoreFile: Posture Tracker demohttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143965Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:69b2fb29-856c-45c0-bd85-449d85a5e09fvlasov01A short video demo of Posture Tracker using Arduino Nano 33 IoT and a smartphone appnanoiot33arduinoFile: Agroprobe Demohttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143951Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ce20e37e-2d19-4754-8cab-a7da78da1b9avishwasnAgroprobe Demo: Build Procedure and working explanation along with edge impulse traing demoagroprobedesign_for_a_cause_2021File: Final Projecthttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143950Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:6ff55873-9e3a-4a6c-8490-1acbb007afeeaaryan2134Showing the working projectarduino_33_iotiotdesign_for_a_cause_2021agricultureFile: Design for a Cause 2021https://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143949Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:4d25791a-3047-471c-bc76-8aab7d386e76dwinholdRobotic handrobotDesigndwinhold2021sensorhandFile: ACE final demohttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143948Wed, 10 Nov 2021 21:13:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:79fc38ae-dd69-4b14-87d5-8d827adb140damgalbuVideo included in post #9 of ACE projectacedesign_for_a_cause_challengedesign_for_a_cause_2021File: Demo - Automatic Medicine Vendorhttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143946Wed, 10 Nov 2021 21:12:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ae9486b4-4f9c-4a0d-8754-76f0a7dfdd3faniketdholeThe testing of Medicine Vendor with App and Arduino Nano IoT3dprintedarduino_nano_iotservoFile: Testing Motorshttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143945Wed, 10 Nov 2021 21:12:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:214d9f0d-bfbc-49ee-be69-d12c22b037f4aniketdholeTesting of Servo Motor At all Position using Arduino Nano Iot 333dprintedarduino_nano_iotservoFile: Over All Buildhttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143944Wed, 10 Nov 2021 21:12:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:1129b5bf-e3a9-4007-bb6c-923a65e0bc18aniketdholeWhole Build including Motors, Connections and Assembled Parts3dprintedarduino_nano_iotservoFile: VenTTracker - Environmental Monitor - Version 2 - Android - Arduino IoT Remotehttps://community.element14.com/challenges-projects/design-challenges/design-for-a-cause-2021/m/managed-videos/143940Wed, 10 Nov 2021 21:12:00 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:bb980f3f-f813-45b0-91c5-56680e789432javagozaVenTTracker - Environmental Monitor - Version 2 - Android - Arduino IoT Remoteandroidenvironmental_monitorventtrackercloudiotco2meterarduino