
SunTracker_BLE
Dependencies: BLE_API X_NUCLEO_6180XA1 X_NUCLEO_IDB0XA1 X_NUCLEO_IHM01A1 X_NUCLEO_IKS01A1 mbed
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Overview
The SunTracker is a demo application running on ST Nucleo-F401RE stacking a set of ST X-NUCLEO expansion boards.
Main features provided are:
- A solar panel follows the light source, orienting the panel in order to achieve the best panel efficiency.
- Orientation is controlled thanks to a couple of VL6180X FlightSense light sensors mounted on a X-NUCLEO-6180XA1 expansion board and driven by X-NUCLEO-IHM01A1 controlled stepper motor acting as actuator to orientate the panel.
- The system features a progressive control on the stepper motor in order to modulate the panel rotation speed according to the light angle.
- The application is also able to control the panel productivity reading the panel voltage through an ADC and proving feedback on the local display.
- A manual orientation is possible by using the accelerometer on a X-NUCLEO-IKS01A1 expansion board that, according on board tilt, controls the speed and the rotate direction.
- A remote control is available using a X-NUCLEO-IDB04A1 or a X-NUCLEO-IDB05A1 Bluetooth Low Energy expansion board. Remote control software is here.
Working Status
- SunTracker has 3 working status visible on FlightSense display and switchable by pressing the User Button:
Status 0 (Idle)
- Motor: Free Turning
- Display: Waiting for User Button
Status 1
- Motor: Driven by Light
- Display: Direction and Light Intensity = Direction and Motor Speed
Status 2
- Motor: Driven by Light
- Display: Solar Panel Efficiency
Status 3
- Motor: Driven by Accelerometer
- Display: Direction and Accelerometer Intensity
Server Startup
- When you plug the power supply, the word ‘PUSH’ is shown on display.
- You can manually rotate the structure to assign the ‘Zero Point’. Then press the User Button to launch the application.
- The display will show this status, which means that the structureis oriented to maximize the efficiency of the solar panel.
- If there is a light displacement, the structure will rotate, left or right,to follow the light source and on display is shown the direction and the speed.
- You can press the User Button to show the panel efficiencywith 4 digits that represent the range from 0v (0000) to 3,3v (3300).
- Further pressing the User Button you will manual rotate the panel by tilt the Server or Client accelerometer depending by BLE connection.
Client Startup
- The Client application can remotely control the User Button and the Accelerometer functions.
- Power on the Client AFTER the Server, it will automatically search for the SunTracker and will establish a BLE connection.
- The Green Led on Nucleo Client board will be powered on.
Rotation Features
- It has been implemented a block of rotation to avoid cables twist.
- The blocking point can be set in the firmware by changing a constant.
- You can manually rotate the structure to assign the ‘Zero Point’ before press the User Button to launch the application.
- The system features a progressive control on the stepper motor in order to modulate the rotation speed according to the light or accelerometer angle.
List of Components
SERVER SunTracker_BLE
- Nucleo-F401RE platform using a STM32F401RET6 microcontroller.
- X-NUCLEO-IHM01A1 - Stepper motor driver board based on the EasySPIN L6474.
- X-NUCLEO-6180XA1 - 3-in-1 proximity and ambient light sensor board based on ST FlightSense technology.
- VL6180X-SATEL - Satellite boards compatible with X-NUCLEO-6180XA1 board.
- X-NUCLEO-IKS01A1 - Motion MEMS and environmental sensor board.
- X-NUCLEO-IDB04A1 or X-NUCLEO-IDB05A1 - Bluetooth Low Energy Bluetooth low energy evaluation board.
- Stepper Motor 400’’ (Part Number 5350401) - To orientate the Mechanical Structure.
- Solar Panel 0.446w (Part Number 0194127) - To capture sunlight and generate electrical current.
- Power Supply 12v (Part Number 7262993) - To provide power supply at the Stepper Motor.
- Flat Cable 6 ways (Part Number 1807010) - To plug VL6180X-SATEL with X-NUCLEO-6180XA1 (60cm length each x2).
- Cable Connector (Part Number 6737694) - To plug the Flat Cable (x4).
- Power Connector (Part Number 0487842) - To provide Power Supply to X-NUCLEO-IHM01A1.
CLIENT SunTracker_BLE_Remote
- Nucleo-F401RE platform using a STM32F401RET6 microcontroller.
- X-NUCLEO-IKS01A1 - Motion MEMS and environmental sensor board.
- X-NUCLEO-IDB04A1 or X-NUCLEO-IDB05A1- Bluetooth Low Energy Bluetooth low energy evaluation board.
MECHANICAL STRUCTURE
Find here the STL files to print with a 3D printer.
FLAT CABLE ASSEMBLY
HARDWARE SETUP
Nucleo ADC + Solar Panel
Connect Solar Panel cables to Nucleo Morpho PC_3 (white) and Nucleo Morpho GND (black). Connect a capacitor 10uF between PC_3 and GND to stabilize its voltage value shown on display.
EasySpin (L6474) + BLE
Hardware conflict between EasySpin DIR1 and BLE Reset, both on same Arduino Pin PA_8. Disconnect PA_8 between EasySpin and Nucleo by fold EasySpin Pin. PB_2 has been configured as EasySpin DIR1 in the firmware .Connect Nucleo Morpho PB_2 to FlightSense Arduino PA_8 by a wire.
FlightSense Satellites
In case of instability with I2C due to long flat cables, solder 4 SMD capacitors 47pF on FlightSense board in parallel between R15, R16, R17, R18 and plug 2 capacitors 15pF between FlightSense Arduino PB_8 and PB_9 to GND pin to cut-off noises over 720 KHz.
Arduino & Morpho Pinout
Revision 19:b2c04428ffed, committed 2016-05-10
- Comitter:
- fabiombed
- Date:
- Tue May 10 13:36:00 2016 +0000
- Parent:
- 18:319a1bb8f837
- Child:
- 20:05e3440240ed
- Commit message:
- Fine Tuning
Changed in this revision
CustomSensorsService.h | Show annotated file Show diff for this revision Revisions of this file |
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/CustomSensorsService.h Fri Apr 22 14:40:14 2016 +0000 +++ b/CustomSensorsService.h Tue May 10 13:36:00 2016 +0000 @@ -109,7 +109,9 @@ PRINTF("sendEnvStatus handle: %d\n\r", statusCharacteristic.getValueAttribute().getHandle()); memcpy (pastenvStatus, envStatus, STATUS_DATA_LEN); ble.gattServer().write(statusCharacteristic.getValueAttribute().getHandle(), envStatus, STATUS_DATA_LEN, 0); - printf(" (Update)"); + #ifdef Debug + printf(" (Update)"); + #endif } void updateEnvStatus (uint16_t Sta, uint16_t TimeStamp) { @@ -128,7 +130,9 @@ PRINTF("sendEnvDifference handle: %d\n\r", differenceCharacteristic.getValueAttribute().getHandle()); memcpy (pastenvDifference, envDifference, DIFFERENCE_DATA_LEN); ble.gattServer().write(differenceCharacteristic.getValueAttribute().getHandle(), envDifference, DIFFERENCE_DATA_LEN, 0); - printf(" (Update)"); + #ifdef Debug + printf(" (Update)"); + #endif } void updateEnvDifference (uint16_t Dif, uint16_t TimeStamp) { @@ -147,7 +151,9 @@ PRINTF("sendEnvPosition handle: %d\n\r", positionCharacteristic.getValueAttribute().getHandle()); memcpy (pastenvPosition, envPosition, POSITION_DATA_LEN); ble.gattServer().write(positionCharacteristic.getValueAttribute().getHandle(), envPosition, POSITION_DATA_LEN, 0); - printf(" (Update)"); + #ifdef Debug + printf(" (Update)"); + #endif } void updateEnvPosition (uint16_t Pos, uint16_t TimeStamp) { @@ -166,7 +172,9 @@ PRINTF("sendEnvSunpanel handle: %d\n\r", sunpanelCharacteristic.getValueAttribute().getHandle()); memcpy (pastenvSunpanel, envSunpanel, SUNPANEL_DATA_LEN); ble.gattServer().write(sunpanelCharacteristic.getValueAttribute().getHandle(), envSunpanel, SUNPANEL_DATA_LEN, 0); - printf(" (Update)"); + #ifdef Debug + printf(" (Update)"); + #endif } void updateEnvSunpanel (uint16_t Sun, uint16_t TimeStamp) {
--- a/main.cpp Fri Apr 22 14:40:14 2016 +0000 +++ b/main.cpp Tue May 10 13:36:00 2016 +0000 @@ -3,7 +3,7 @@ * @file main.cpp * @author Fabio Brembilla * @version V2.0.0 - * @date April, 2016 + * @date May, 2016 * @brief SunTracker + BLE (Server) Vertical Application * This application use IHM01A1, 6180XA1, IKS01A1, IDB0XA1 expansion boards ****************************************************************************** @@ -42,6 +42,7 @@ #define EasySpin //IHM01A1 Main (remove only for debug) #define Sensors //IKS01A1 Option #define Ble //IDB0XA1 Option +//#define Debug //Verbose about Printf /* Includes ------------------------------------------------------------------*/ @@ -89,10 +90,10 @@ } cns_t; #define BLE_DEV_NAME "SunTracker" -//#define BLE_DEV_MAC 0xAA,0xBB,0xCC,0xDD,0xEE,0xFF // SERVER address (must be set into CLIENT BLE_peer_address_BE) -#define BLE_DEV_MAC 0xFD,0x66,0x05,0x13,0xBE,0xBA // Default ST address (must be set into CLIENT BLE_peer_address_BE) -#define BLE_ADVERTISING_INTERVAL 1000 - +#define BLE_DEV_MAC 0xFC,0x03,0x02,0x01,0xFB,0xFA // SERVER address (must be set into CLIENT BLE_peer_address_BE) +#define BLE_ADVERTISING_INTERVAL 100 +uint8_t dat[] = {0x01,0x80,0x00,0x00,0x78,0x00}; // Data Sent during Advertising, must respect a Standard ST + #include "CustomControlService.h" #include "CustomSensorsService.h" @@ -117,9 +118,9 @@ #define TOLLERANCE 80 // Tollerance between Left and Right before Start Movement #define RANGE_1 250 // Range 1 for Motor Speed #define RANGE_2 500 // Range 2 for Motor Speed -#define TIMEOUT_STA 1 // Timeout for Ticker Status (in second) -#define TIMEOUT_DIF 0.5 // Timeout for Ticker Difference (in second) -#define TIMEOUT_POS 0.5 // Timeout for Ticker Position (in second) +#define TIMEOUT_STA 0.5 // Timeout for Ticker Status (in second) +#define TIMEOUT_DIF 0.1 // Timeout for Ticker Difference (in second) +#define TIMEOUT_POS 0.1 // Timeout for Ticker Position (in second) #define TIMEOUT_SUN 0.5 // Timeout for Ticker SunPanel (in second) /* Variables -----------------------------------------------------------------*/ @@ -143,6 +144,7 @@ bool tickerDif=false; bool tickerPos=false; bool tickerSun=false; +bool BLEConnected=false;// BLE Connection Status /* Initializations ------------------------------------------------------------*/ @@ -193,8 +195,7 @@ Status++; -//#ifdef Sensors -#ifdef Ble +#ifdef Sensors //#ifdef Ble if (Status>3) { Status=1; } #else if (Status>2) { Status=1; } @@ -235,22 +236,30 @@ if (p_customsensorservice->isStatusHandle(eventDataP->handle)) { - printf("\n\r\n\rSend BLE Display Status %d", Status); + #ifdef Debug + printf("\n\r\n\rSend BLE Display Status %d", Status); + #endif p_customsensorservice->sendEnvStatus(Status, TimeStamp); - } else if (p_customsensorservice->isDifferenceHandle(eventDataP->handle)) { - - printf("\n\rSend BLE Difference %d lux/mems", diff); // Send BLE diff, no diff_abs + } else if (p_customsensorservice->isDifferenceHandle(eventDataP->handle)) + { + #ifdef Debug + printf("\n\rSend BLE Difference %d lux/mems", diff); // Send BLE diff, no diff_abs + #endif p_customsensorservice->sendEnvDifference(diff, TimeStamp); - } else if (p_customsensorservice->isPositionHandle(eventDataP->handle)) { - - printf("\n\rSend BLE Position %d", pos); + } else if (p_customsensorservice->isPositionHandle(eventDataP->handle)) + { + #ifdef Debug + printf("\n\rSend BLE Position %d", pos); + #endif p_customsensorservice->sendEnvPosition(pos, TimeStamp); - } else if (p_customsensorservice->isSunpanelHandle(eventDataP->handle)) { - - printf("\n\rSend BLE Sunpanel %d mV", measure); + } else if (p_customsensorservice->isSunpanelHandle(eventDataP->handle)) + { + #ifdef Debug + printf("\n\rSend BLE Sunpanel %d mV", measure); + #endif p_customsensorservice->sendEnvSunpanel(measure, TimeStamp); } @@ -265,7 +274,7 @@ { // From CLIENT it receives a command in this format: Feature (4) + Type (1) + Data (2) uint32_t Feature = eventDataP->data[0]<<24 | eventDataP->data[1]<<16 | eventDataP->data[2]<<8 | eventDataP->data[3]; - uint8_t Type = eventDataP->data[4]; + //uint8_t Type = eventDataP->data[4]; int16_t Data = eventDataP->data[5]<<8 | eventDataP->data[6]; //printf("\r\n\r\nmyonDataWriteCallback (Feature %x)", Feature); @@ -282,7 +291,9 @@ break; case FeatureDifference: - printf("\r\n\r\nReceived DIFF %d", Data); + #ifdef Debug + printf("\r\n\r\nReceived DIFF %d", Data); + #endif diff = Data; break; @@ -302,12 +313,14 @@ static void onConnectionCallback(const Gap::ConnectionCallbackParams_t * connectionParams) { printf("\r\n\r\nonConnectionCallback (Line %d)", __LINE__); + BLEConnected=true; } static void onDisconnectionCallback(const Gap::DisconnectionCallbackParams_t * disConnectionReason) { printf("\r\n\r\nonDisconnectionCallback (Line %d)", __LINE__); p_BLEdev->gap().startAdvertising(); + BLEConnected=false; } #endif @@ -344,7 +357,6 @@ // Setup BLE Advertising const static char DEVICE_NAME[] = BLE_DEV_NAME; p_BLEdev->gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE); - uint8_t dat[] = {0x01,0x80,0x00,0x00,0x78,0x00}; // Data Sent during Advertising, must respect a Standard ST p_BLEdev->gap().accumulateScanResponse(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA,dat,6); p_BLEdev->gap().accumulateAdvertisingPayload(GapAdvertisingData::UNKNOWN); p_BLEdev->gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME)); @@ -546,8 +558,10 @@ //printf("Measure = %.0f mV\r\n", measure); //board->display->DisplayDigit("A", 0); + //if (abs(measure-prev_meas)>(prev_meas*0.1)) { prev_meas = measure; } + //if (Status==2) { sprintf(DisplayStr, "%d", prev_meas); } + if (Status==2) { sprintf(DisplayStr, "%d", measure); } - } /* Ticker --------------------------------------------------------------------*/ @@ -578,9 +592,10 @@ // Loop until push User Button to Set 0 Point printf("\r\nWait PUSH Button"); strcpy(DisplayStr,"pusH"); - while(Status==0) { + while(Status==0) + { #ifdef FlightSense - board->display->DisplayString(DisplayStr, 4); + board->display->DisplayString(DisplayStr, strlen(DisplayStr)); // if I set fix len=4, it aligns digit from left //printf("%s\n\r", DisplayStr); #endif @@ -588,7 +603,9 @@ if (p_customsensorservice->isStatusNotificationEn()) { if (tickerSta) { tickerSta=false; - printf("\n\r\n\rSend BLE Display Status %d", Status); + #ifdef Debug + printf("\n\r\n\rSend BLE Display Status %d", Status); + #endif //p_customsensorservice->sendEnvStatus(Status, TimeStamp); p_customsensorservice->updateEnvStatus(Status, TimeStamp); } @@ -611,26 +628,33 @@ // Main Loop while(true) - { + { if (Status==1 | Status==2) { Measure_Babybear(); } - #ifndef Ble // without BLE it uses Accelerometer from SERVER, otherwise receive the value from CLIENT - if (Status==3) { Measure_Accelerometer(); } - #endif + // If BLE is not connected, it uses Accelerometer from SERVER, otherwise receive the value from CLIENT + if (BLEConnected==false) { + if (Status==3) { Measure_Accelerometer(); } + } Control_Motor(); Measure_SolarPanel(); #ifdef FlightSense - board->display->DisplayString(DisplayStr, 4); + board->display->DisplayString(DisplayStr, strlen(DisplayStr)); // if I set fix len=4, it aligns digit from left //printf("%s\n\r", DisplayStr); #endif #ifdef Ble + //if (Status==3 & BLEConnected==false) { diff=0; } + //if Status 3 and BLE not connected set diff=0 (no more useful if use SERVER Accelerometer) + //After disconnect CLIENT, until it receive the timeout/notify to be really disconnected, it not receive diff! + if (p_customsensorservice->isStatusNotificationEn()) { if (tickerSta) { tickerSta=false; - printf("\n\r\n\rSend BLE Display Status %d", Status); + #ifdef Debug + printf("\n\r\n\rSend BLE Display Status %d", Status); + #endif //p_customsensorservice->sendEnvStatus(Status, TimeStamp); p_customsensorservice->updateEnvStatus(Status, TimeStamp); } @@ -638,35 +662,38 @@ if (p_customsensorservice->isDifferenceNotificationEn()) { if (tickerDif) { tickerDif=false; - printf("\n\rSend BLE Difference %d lux/mems", diff); // Send BLE diff, no diff_abs + #ifdef Debug + printf("\n\rSend BLE Difference %d lux/mems", diff); // Send BLE diff, no diff_abs + #endif //p_customsensorservice->sendEnvDifference(diff, TimeStamp); p_customsensorservice->updateEnvDifference(diff, TimeStamp); } } if (p_customsensorservice->isPositionNotificationEn()) { if (tickerPos) { - tickerPos=false; - printf("\n\rSend BLE Position %d", pos); + tickerPos=false; + #ifdef Debug + printf("\n\rSend BLE Position %d", pos); + #endif //p_customsensorservice->sendEnvPosition(pos, TimeStamp); p_customsensorservice->updateEnvPosition(pos, TimeStamp); } } if (p_customsensorservice->isSunpanelNotificationEn()) { if (tickerSun) { - tickerSun=false; - printf("\n\rSend BLE SunPanel %d mV", measure); + tickerSun=false; + #ifdef Debug + printf("\n\rSend BLE SunPanel %d mV", measure); + #endif //p_customsensorservice->sendEnvSunpanel(measure, TimeStamp); p_customsensorservice->updateEnvSunpanel(measure, TimeStamp); } } - //diff=0; // To reset it in case from Accelerometer doesn't arrive a future value (is better that Acc. always send a value) p_BLEdev->waitForEvent(); #endif - } //status_l=board->sensor_left->StopMeasurement(als_continuous_polling); //status_r=board->sensor_right->StopMeasurement(als_continuous_polling); - } \ No newline at end of file