SunTracker_BLE
Dependencies: BLE_API X_NUCLEO_6180XA1 X_NUCLEO_IDB0XA1 X_NUCLEO_IHM01A1 X_NUCLEO_IKS01A1 mbed
Fork of SunTracker_BLE by
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
CustomControlService.h@17:582eba752042, 2016-04-19 (annotated)
- Committer:
- fabiombed
- Date:
- Tue Apr 19 08:53:07 2016 +0000
- Revision:
- 17:582eba752042
- Parent:
- 15:019b8d60c89d
Updated to BlueST Protocol
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fabiombed | 5:76fb6b783487 | 1 | /****************************************************************************** |
fabiombed | 5:76fb6b783487 | 2 | * @file CustomControlService.h |
fabiombed | 5:76fb6b783487 | 3 | * @author Fabio Brembilla |
fabiombed | 5:76fb6b783487 | 4 | * @version V1.0.0 |
fabiombed | 17:582eba752042 | 5 | * @date April, 2016 |
fabiombed | 5:76fb6b783487 | 6 | * @brief SunTracker Custom Service for BlueTooth (IDB0XA1 expansion board) |
fabiombed | 5:76fb6b783487 | 7 | ***************************************************************************** |
fabiombed | 5:76fb6b783487 | 8 | * @attention |
fabiombed | 5:76fb6b783487 | 9 | * |
fabiombed | 5:76fb6b783487 | 10 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> |
fabiombed | 5:76fb6b783487 | 11 | * |
fabiombed | 5:76fb6b783487 | 12 | * Redistribution and use in source and binary forms, with or without modification, |
fabiombed | 5:76fb6b783487 | 13 | * are permitted provided that the following conditions are met: |
fabiombed | 5:76fb6b783487 | 14 | * 1. Redistributions of source code must retain the above copyright notice, |
fabiombed | 5:76fb6b783487 | 15 | * this list of conditions and the following disclaimer. |
fabiombed | 5:76fb6b783487 | 16 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
fabiombed | 5:76fb6b783487 | 17 | * this list of conditions and the following disclaimer in the documentation |
fabiombed | 5:76fb6b783487 | 18 | * and/or other materials provided with the distribution. |
fabiombed | 5:76fb6b783487 | 19 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
fabiombed | 5:76fb6b783487 | 20 | * may be used to endorse or promote products derived from this software |
fabiombed | 5:76fb6b783487 | 21 | * without specific prior written permission. |
fabiombed | 5:76fb6b783487 | 22 | * |
fabiombed | 5:76fb6b783487 | 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
fabiombed | 5:76fb6b783487 | 24 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
fabiombed | 5:76fb6b783487 | 25 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
fabiombed | 5:76fb6b783487 | 26 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
fabiombed | 5:76fb6b783487 | 27 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
fabiombed | 5:76fb6b783487 | 28 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
fabiombed | 5:76fb6b783487 | 29 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
fabiombed | 5:76fb6b783487 | 30 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
fabiombed | 5:76fb6b783487 | 31 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
fabiombed | 5:76fb6b783487 | 32 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
fabiombed | 5:76fb6b783487 | 33 | * |
fabiombed | 5:76fb6b783487 | 34 | ****************************************************************************** |
fabiombed | 5:76fb6b783487 | 35 | */ |
fabiombed | 5:76fb6b783487 | 36 | |
fabiombed | 5:76fb6b783487 | 37 | #include "BLE.h" |
fabiombed | 5:76fb6b783487 | 38 | #include "UUID.h" |
fabiombed | 17:582eba752042 | 39 | |
fabiombed | 17:582eba752042 | 40 | #define STORE_BE_32(buf, val) ( ((buf)[3] = (uint8_t) (val) ) , \ |
fabiombed | 17:582eba752042 | 41 | ((buf)[2] = (uint8_t) (val>>8) ) , \ |
fabiombed | 17:582eba752042 | 42 | ((buf)[1] = (uint8_t) (val>>16) ) , \ |
fabiombed | 17:582eba752042 | 43 | ((buf)[0] = (uint8_t) (val>>24) ) ) |
fabiombed | 17:582eba752042 | 44 | |
fabiombed | 14:644f9e7278e9 | 45 | /* BLE Services: Primary + 1 Secondary (Char Desk) */ |
fabiombed | 17:582eba752042 | 46 | //const LongUUIDBytes_t CONTROL_SERVICE_UUID = {0x00,0x00,0x00,0x00,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A}; //Primary |
fabiombed | 14:644f9e7278e9 | 47 | //const LongUUIDBytes_t USER_BUTTON_CHAR_UUID = {0x00,0x00,0x00,0x01,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A}; //User Button Control |
fabiombed | 17:582eba752042 | 48 | //const ShortUUIDBytes_t CONTROL_SERVICE_UUID = 0xA000; |
fabiombed | 17:582eba752042 | 49 | //const ShortUUIDBytes_t CONTROL_COMMAND_CHAR_UUID = 0xA001; |
fabiombed | 17:582eba752042 | 50 | |
fabiombed | 17:582eba752042 | 51 | /* BLE Services: Primary + 1 Secondary (Char Desk) */ |
fabiombed | 17:582eba752042 | 52 | const UUID::LongUUIDBytes_t CONTROL_SERVICE_UUID = {0x00,0x00,0x00,0x00,0x00,0x0F,0x11,0xe1,0x9a,0xb4,0x00,0x02,0xa5,0xd5,0xc5,0x1b}; |
fabiombed | 17:582eba752042 | 53 | //const LongUUIDBytes_t CONTROL_REGISTER_CHAR_UUID = {0x00,0x00,0x00,0x01,0x00,0x0F,0x11,0xe1,0xac,0x36,0x00,0x02,0xa5,0xd5,0xc5,0x1b}; //Not Used |
fabiombed | 17:582eba752042 | 54 | const UUID::LongUUIDBytes_t CONTROL_COMMAND_CHAR_UUID = {0x00,0x00,0x00,0x02,0x00,0x0F,0x11,0xe1,0xac,0x36,0x00,0x02,0xa5,0xd5,0xc5,0x1b}; |
fabiombed | 17:582eba752042 | 55 | |
fabiombed | 17:582eba752042 | 56 | //#define SIZEOF_CONTROL_DATA_LEN 2 |
fabiombed | 17:582eba752042 | 57 | // 1 byte 0xFF 8 bit int8 |
fabiombed | 17:582eba752042 | 58 | // 2 byte 0xFFFF 16 bit int16 |
fabiombed | 17:582eba752042 | 59 | // 4 byte 0xFFFFFFFF 32 bit int32 |
fabiombed | 17:582eba752042 | 60 | #define COMMAND_DATA_LEN 2+4+1+2 // TimeStamp (only for Response) + Feature + Type + Data |
fabiombed | 5:76fb6b783487 | 61 | |
fabiombed | 7:54984d031243 | 62 | /* Custom Control Service */ |
fabiombed | 7:54984d031243 | 63 | class CustomControlService { |
fabiombed | 5:76fb6b783487 | 64 | public: |
fabiombed | 7:54984d031243 | 65 | CustomControlService(BLE &_ble) : |
fabiombed | 5:76fb6b783487 | 66 | ble(_ble), |
fabiombed | 17:582eba752042 | 67 | commandCharacteristic(CONTROL_COMMAND_CHAR_UUID, commandData, COMMAND_DATA_LEN, COMMAND_DATA_LEN, |
fabiombed | 17:582eba752042 | 68 | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY) |
fabiombed | 5:76fb6b783487 | 69 | { |
fabiombed | 5:76fb6b783487 | 70 | static bool serviceAdded = false; // To be sure to define just one time |
fabiombed | 5:76fb6b783487 | 71 | if (serviceAdded) { |
fabiombed | 5:76fb6b783487 | 72 | return; |
fabiombed | 5:76fb6b783487 | 73 | } |
fabiombed | 5:76fb6b783487 | 74 | |
fabiombed | 17:582eba752042 | 75 | GattCharacteristic *charTable[] = {&commandCharacteristic}; |
fabiombed | 17:582eba752042 | 76 | GattService controlService(CONTROL_SERVICE_UUID, charTable, sizeof(charTable) / sizeof(GattCharacteristic *)); |
fabiombed | 9:ca289bf57f52 | 77 | ble.gattServer().addService(controlService); |
fabiombed | 5:76fb6b783487 | 78 | |
fabiombed | 17:582eba752042 | 79 | isEnabledCommandNotify = false; |
fabiombed | 17:582eba752042 | 80 | memset (commandData, 0, COMMAND_DATA_LEN); |
fabiombed | 14:644f9e7278e9 | 81 | isBTLEConnected = DISCONNECTED; |
fabiombed | 14:644f9e7278e9 | 82 | serviceAdded = true; |
fabiombed | 5:76fb6b783487 | 83 | } |
fabiombed | 5:76fb6b783487 | 84 | |
fabiombed | 5:76fb6b783487 | 85 | // Tests Method |
fabiombed | 8:144855fe02bd | 86 | |
fabiombed | 17:582eba752042 | 87 | /* BlueMicrosystem1 (only for Response) |
fabiombed | 17:582eba752042 | 88 | |
fabiombed | 17:582eba752042 | 89 | uint32_t sendcontrolState(uint8_t val, uint8_t Command, uint32_t Feature, uint16_t TimeStamp) { |
fabiombed | 17:582eba752042 | 90 | STORE_LE_16(commandData ,TimeStamp); |
fabiombed | 17:582eba752042 | 91 | STORE_BE_32(commandData+2,Feature); |
fabiombed | 17:582eba752042 | 92 | commandData[6] = Command; |
fabiombed | 17:582eba752042 | 93 | commandData[7] = (val==0x01) ? 100: val; |
fabiombed | 17:582eba752042 | 94 | return ble.gattServer().write(commandCharacteristic.getValueAttribute().getHandle(), commandData, COMMAND_DATA_LEN, 0); |
fabiombed | 17:582eba752042 | 95 | } |
fabiombed | 17:582eba752042 | 96 | |
fabiombed | 17:582eba752042 | 97 | uint32_t updatecontrolState(uint8_t val, uint8_t Command, uint32_t Feature, uint16_t TimeStamp) { |
fabiombed | 17:582eba752042 | 98 | if (ble.getGapState().connected && isEnabledCommandNotify ) { |
fabiombed | 17:582eba752042 | 99 | return sendcontrolState(val, Command, Feature, TimeStamp); |
fabiombed | 17:582eba752042 | 100 | } |
fabiombed | 17:582eba752042 | 101 | return 0; |
fabiombed | 17:582eba752042 | 102 | } |
fabiombed | 17:582eba752042 | 103 | */ |
fabiombed | 17:582eba752042 | 104 | |
fabiombed | 17:582eba752042 | 105 | /* Old SunTracker |
fabiombed | 17:582eba752042 | 106 | |
fabiombed | 17:582eba752042 | 107 | void sendCommandState(uint8_t State) { |
fabiombed | 17:582eba752042 | 108 | STORE_LE_16(commandData,State); |
fabiombed | 17:582eba752042 | 109 | PRINTF("sendCommandState handle: %d\n\r", commandCharacteristic.getValueAttribute().getHandle()); |
fabiombed | 17:582eba752042 | 110 | memcpy (pastcommandData, commandData, COMMAND_DATA_LEN); |
fabiombed | 17:582eba752042 | 111 | ble.gattServer().write(commandCharacteristic.getValueAttribute().getHandle(), commandData, COMMAND_DATA_LEN, 0); |
fabiombed | 14:644f9e7278e9 | 112 | printf(" (Update)"); |
fabiombed | 14:644f9e7278e9 | 113 | } |
fabiombed | 14:644f9e7278e9 | 114 | |
fabiombed | 17:582eba752042 | 115 | void updateCommandState(uint8_t State) { |
fabiombed | 17:582eba752042 | 116 | if (ble.getGapState().connected && isEnabledCommandNotify ) { |
fabiombed | 17:582eba752042 | 117 | if (memcmp (&pastcommandData[0], &State, COMMAND_DATA_LEN) != 0) { |
fabiombed | 17:582eba752042 | 118 | sendCommandState(State); |
fabiombed | 15:019b8d60c89d | 119 | } |
fabiombed | 14:644f9e7278e9 | 120 | } |
fabiombed | 14:644f9e7278e9 | 121 | } |
fabiombed | 14:644f9e7278e9 | 122 | |
fabiombed | 14:644f9e7278e9 | 123 | */ |
fabiombed | 14:644f9e7278e9 | 124 | |
fabiombed | 8:144855fe02bd | 125 | void enNotify (Gap::Handle_t handle) { |
fabiombed | 15:019b8d60c89d | 126 | printf("\n\r\n\renNotify (handle %d)", handle); |
fabiombed | 17:582eba752042 | 127 | if (isCommandHandle(handle)) { isEnabledCommandNotify = true; return; } |
fabiombed | 8:144855fe02bd | 128 | } |
fabiombed | 8:144855fe02bd | 129 | |
fabiombed | 8:144855fe02bd | 130 | void disNotify (Gap::Handle_t handle) { |
fabiombed | 15:019b8d60c89d | 131 | printf("\n\r\n\rdisNotify (handle %d)", handle); |
fabiombed | 17:582eba752042 | 132 | if (isCommandHandle(handle)) { isEnabledCommandNotify = false; return; } |
fabiombed | 8:144855fe02bd | 133 | } |
fabiombed | 15:019b8d60c89d | 134 | |
fabiombed | 17:582eba752042 | 135 | bool isCommandNotificationEn (void) { |
fabiombed | 17:582eba752042 | 136 | return isEnabledCommandNotify; |
fabiombed | 15:019b8d60c89d | 137 | } |
fabiombed | 8:144855fe02bd | 138 | |
fabiombed | 17:582eba752042 | 139 | bool isCommandHandle (Gap::Handle_t handle) { |
fabiombed | 17:582eba752042 | 140 | if (handle == commandCharacteristic.getValueAttribute().getHandle()) return true; |
fabiombed | 8:144855fe02bd | 141 | return false; |
fabiombed | 8:144855fe02bd | 142 | } |
fabiombed | 8:144855fe02bd | 143 | |
fabiombed | 8:144855fe02bd | 144 | void updateConnectionStatus(ConnectionStatus_t status) { |
fabiombed | 17:582eba752042 | 145 | isEnabledCommandNotify = false; |
fabiombed | 17:582eba752042 | 146 | memset (commandData, 0, COMMAND_DATA_LEN); |
fabiombed | 14:644f9e7278e9 | 147 | isBTLEConnected = status; |
fabiombed | 8:144855fe02bd | 148 | } |
fabiombed | 8:144855fe02bd | 149 | |
fabiombed | 5:76fb6b783487 | 150 | // Variables Initialization |
fabiombed | 5:76fb6b783487 | 151 | private: |
fabiombed | 5:76fb6b783487 | 152 | BLE &ble; |
fabiombed | 17:582eba752042 | 153 | uint8_t commandData[COMMAND_DATA_LEN]; |
fabiombed | 17:582eba752042 | 154 | uint8_t pastcommandData[COMMAND_DATA_LEN]; |
fabiombed | 17:582eba752042 | 155 | GattCharacteristic commandCharacteristic; |
fabiombed | 14:644f9e7278e9 | 156 | ConnectionStatus_t isBTLEConnected; |
fabiombed | 17:582eba752042 | 157 | bool isEnabledCommandNotify; |
fabiombed | 5:76fb6b783487 | 158 | |
fabiombed | 5:76fb6b783487 | 159 | }; |