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examples/Example2-tinyECG-ECG-BioZ-Openview/Example2-tinyECG-ECG-BioZ-Openview.ino
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| ////////////////////////////////////////////////////////////////////////////////////////// | ||
| // | ||
| // Demo code for the MAX30001 breakout board | ||
| // | ||
| // This example plots the ECG through serial UART on openview processing GUI. | ||
| // GUI URL: https://github.com/Protocentral/protocentral_openview.git | ||
| // | ||
| // Arduino connections: | ||
| // | ||
| // |MAX30001 pin label| Pin Function |Arduino Connection|ESP32 Connection| | ||
| // |----------------- |:--------------------:|-----------------:|---------------:| | ||
| // | MISO | Slave Out | D12 | 19 | | ||
| // | MOSI | Slave In | D11 | 23 | | ||
| // | SCLK | Serial Clock | D13 | 18 | | ||
| // | CS | Chip Select | D7 | 5 | | ||
| // | VCC | Digital VDD | +5V | +5V | | ||
| // | GND | Digital Gnd | Gnd | Gnd | | ||
| // | FCLK | 32K CLOCK | - | - | | ||
| // | INT1 | Interrupt1 | 02 | 02 | | ||
| // | INT2 | Interrupt2 | - | - | | ||
| // | ||
| // This software is licensed under the MIT License(http://opensource.org/licenses/MIT). | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT | ||
| // NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
| // IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | ||
| // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE | ||
| // SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| // | ||
| // For information on how to use, visit https://github.com/Protocentral/protocentral_max30001 | ||
| // | ||
| ///////////////////////////////////////////////////////////////////////////////////////// | ||
|
|
||
| #include <SPI.h> | ||
| #include "protocentral_max30001.h" | ||
|
|
||
| #define MAX30001_CS_PIN 20 | ||
| #define MAX30001_DELAY_SAMPLES 8 // Time between consecutive samples | ||
|
|
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| #define CES_CMDIF_PKT_START_1 0x0A | ||
| #define CES_CMDIF_PKT_START_2 0xFA | ||
| #define CES_CMDIF_TYPE_DATA 0x02 | ||
| #define CES_CMDIF_PKT_STOP 0x0B | ||
| #define DATA_LEN 0x0C | ||
| #define ZERO 0 | ||
|
|
||
| volatile char DataPacket[DATA_LEN]; | ||
| const char DataPacketFooter[2] = {ZERO, CES_CMDIF_PKT_STOP}; | ||
| const char DataPacketHeader[5] = {CES_CMDIF_PKT_START_1, CES_CMDIF_PKT_START_2, DATA_LEN, ZERO, CES_CMDIF_TYPE_DATA}; | ||
|
|
||
| uint8_t data_len = 0x0C; | ||
|
|
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| MAX30001 max30001(MAX30001_CS_PIN); | ||
|
|
||
| signed long ecg_data; | ||
| signed long bioz_data; | ||
|
|
||
| void sendData(signed long ecg_sample, signed long bioz_sample, bool _bioZSkipSample) | ||
| { | ||
|
|
||
| DataPacket[0] = ecg_sample; | ||
| DataPacket[1] = ecg_sample >> 8; | ||
| DataPacket[2] = ecg_sample >> 16; | ||
| DataPacket[3] = ecg_sample >> 24; | ||
|
|
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| DataPacket[4] = bioz_sample; | ||
| DataPacket[5] = bioz_sample >> 8; | ||
| DataPacket[6] = bioz_sample >> 16; | ||
| DataPacket[7] = bioz_sample >> 24; | ||
|
|
||
| if (_bioZSkipSample == false) | ||
| { | ||
| DataPacket[8] = 0x00; | ||
| } | ||
| else | ||
| { | ||
| DataPacket[8] = 0xFF; | ||
| } | ||
|
|
||
| DataPacket[9] = 0x00; // max30001.heartRate >> 8; | ||
| DataPacket[10] = 0x00; | ||
| DataPacket[11] = 0x00; | ||
|
|
||
| // Send packet header (in ProtoCentral OpenView format) | ||
| for (int i = 0; i < 5; i++) | ||
| { | ||
| Serial.write(DataPacketHeader[i]); | ||
| } | ||
|
|
||
| // Send the data payload | ||
| for (int i = 0; i < DATA_LEN; i++) // transmit the data | ||
| { | ||
| Serial.write(DataPacket[i]); | ||
| } | ||
|
|
||
| // Send packet footer (in ProtoCentral OpenView format) | ||
| for (int i = 0; i < 2; i++) | ||
| { | ||
| Serial.write(DataPacketFooter[i]); | ||
| } | ||
| } | ||
|
|
||
| bool BioZSkipSample = false; | ||
|
|
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| void setup() | ||
| { | ||
| Serial.begin(57600); // Serial begin | ||
| //SPI.begin(); | ||
|
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|
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| SPI.begin(10,8,7,20); | ||
|
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| //SPI. | ||
|
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| bool ret = max30001.max30001ReadInfo(); | ||
| if (ret) | ||
| { | ||
| Serial.println("MAX 30001 read ID Success"); | ||
| } | ||
| else | ||
| { | ||
| while (!ret) | ||
| { | ||
| // stay here untill the issue is fixed. | ||
| ret = max30001.max30001ReadInfo(); | ||
| Serial.println("Failed to read ID, please make sure all the pins are connected"); | ||
| delay(5000); | ||
| } | ||
| } | ||
|
|
||
| Serial.println("Initialising the chip ..."); | ||
| max30001.BeginECGBioZ(); // initialize MAX30001 | ||
| // max30001.Begin(); | ||
| } | ||
|
|
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| void loop() | ||
| { | ||
| ecg_data = max30001.getECGSamples(); | ||
| // max30001.getHRandRR(); | ||
| if (BioZSkipSample == false) | ||
| { | ||
| bioz_data = max30001.getBioZSamples(); | ||
| sendData(ecg_data, bioz_data, BioZSkipSample); | ||
| BioZSkipSample = true; | ||
| } | ||
| else | ||
| { | ||
| bioz_data = 0x00; | ||
| sendData(ecg_data, bioz_data, BioZSkipSample); | ||
| BioZSkipSample = false; | ||
| } | ||
| delay(8); | ||
| } |