Commit 5d6c19aa authored by alaskalinuxuser's avatar alaskalinuxuser
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# Arduino_BlueFruit_Sketches
Just a few sketches from my projects. Hopefully someone else will find this useful.
![ScreenShot](https://github.com/alaskalinuxuser/Arduino_BlueFruit_Sketches/blob/master/ss1.gif)
For information on installing libraries, see: http://www.arduino.cc/en/Guide/Libraries
Apache License
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#include <string.h>
#include <Arduino.h>
#include <bluefruit.h>
#define PACKET_ACC_LEN (15)
#define PACKET_GYRO_LEN (15)
#define PACKET_MAG_LEN (15)
#define PACKET_QUAT_LEN (19)
#define PACKET_BUTTON_LEN (5)
#define PACKET_COLOR_LEN (6)
#define PACKET_LOCATION_LEN (15)
// READ_BUFSIZE Size of the read buffer for incoming packets
#define READ_BUFSIZE (20)
/* Buffer to hold incoming characters */
uint8_t packetbuffer[READ_BUFSIZE+1];
/**************************************************************************/
/*!
@brief Casts the four bytes at the specified address to a float
*/
/**************************************************************************/
float parsefloat(uint8_t *buffer)
{
float f;
memcpy(&f, buffer, 4);
return f;
}
/**************************************************************************/
/*!
@brief Prints a hexadecimal value in plain characters
@param data Pointer to the byte data
@param numBytes Data length in bytes
*/
/**************************************************************************/
void printHex(const uint8_t * data, const uint32_t numBytes)
{
uint32_t szPos;
for (szPos=0; szPos < numBytes; szPos++)
{
Serial.print(F("0x"));
// Append leading 0 for small values
if (data[szPos] <= 0xF)
{
Serial.print(F("0"));
Serial.print(data[szPos] & 0xf, HEX);
}
else
{
Serial.print(data[szPos] & 0xff, HEX);
}
// Add a trailing space if appropriate
if ((numBytes > 1) && (szPos != numBytes - 1))
{
Serial.print(F(" "));
}
}
Serial.println();
}
/**************************************************************************/
/*!
@brief Waits for incoming data and parses it
*/
/**************************************************************************/
uint8_t readPacket(BLEUart *ble_uart, uint16_t timeout)
{
uint16_t origtimeout = timeout, replyidx = 0;
memset(packetbuffer, 0, READ_BUFSIZE);
while (timeout--) {
if (replyidx >= 20) break;
if ((packetbuffer[1] == 'A') && (replyidx == PACKET_ACC_LEN))
break;
if ((packetbuffer[1] == 'G') && (replyidx == PACKET_GYRO_LEN))
break;
if ((packetbuffer[1] == 'M') && (replyidx == PACKET_MAG_LEN))
break;
if ((packetbuffer[1] == 'Q') && (replyidx == PACKET_QUAT_LEN))
break;
if ((packetbuffer[1] == 'B') && (replyidx == PACKET_BUTTON_LEN))
break;
if ((packetbuffer[1] == 'C') && (replyidx == PACKET_COLOR_LEN))
break;
if ((packetbuffer[1] == 'L') && (replyidx == PACKET_LOCATION_LEN))
break;
while (ble_uart->available()) {
char c = ble_uart->read();
if (c == '!') {
replyidx = 0;
}
packetbuffer[replyidx] = c;
replyidx++;
timeout = origtimeout;
}
if (timeout == 0) break;
delay(1);
}
packetbuffer[replyidx] = 0; // null term
if (!replyidx) // no data or timeout
return 0;
if (packetbuffer[0] != '!') // doesn't start with '!' packet beginning
return 0;
// check checksum!
uint8_t xsum = 0;
uint8_t checksum = packetbuffer[replyidx-1];
for (uint8_t i=0; i<replyidx-1; i++) {
xsum += packetbuffer[i];
}
xsum = ~xsum;
// Throw an error message if the checksum's don't match
if (xsum != checksum)
{
Serial.print("Checksum mismatch in packet : ");
printHex(packetbuffer, replyidx+1);
return 0;
}
// checksum passed!
return replyidx;
}
#include <bluefruit.h>
BLEUart bleuart;
BLEDis bledis; // DIS (Device Information Service) helper class instance
// Function prototypes for packetparser.cpp
uint8_t readPacket (BLEUart *ble_uart, uint16_t timeout);
float parsefloat (uint8_t *buffer);
void printHex (const uint8_t * data, const uint32_t numBytes);
// Packet buffer
extern uint8_t packetbuffer[];
int brightness = 0; // how bright the LED is
int fadeAmount = 10; // how many points to fade the LED by
int crankTimer = -1; // Time spent cranking engine.
int startTimer = -1; // Time spent between start and crank.
int runTimer = -1; // Time to run before auto shutoff.
void setup(void) {
Serial.begin(57600);
Serial.println(F("-------------------------------------------"));
Bluefruit.begin();
// Set max power. Accepted values are: -40, -30, -20, -16, -12, -8, -4, 0, 4
Bluefruit.setTxPower(4);
Bluefruit.setName("Bluefruit_AlaskaLinuxUser");
// Configure and start the BLE Uart service
bleuart.begin();
// Configure and Start the Device Information Service
Serial.println("Configuring the Device Information Service");
bledis.setManufacturer("Adafruit Industries");
bledis.setModel("Bluefruit Feather52");
bledis.begin();
// Set up and start advertising
startAdv();
pinMode(17, OUTPUT); //19 is blue LED, 17 is red LED.
pinMode(19, OUTPUT); //19 is blue LED, 17 is red LED.
pinMode(16, OUTPUT);
pinMode(15, OUTPUT);
pinMode(7, OUTPUT);
pinMode(11, OUTPUT);
digitalWrite(16, LOW);
digitalWrite(15, LOW);
digitalWrite(7, LOW);
digitalWrite(11, LOW);
analogWrite(19, 0);
}
void startAdv(void) {
// Advertising packet
Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);
Bluefruit.Advertising.addTxPower();
// Include the BLE UART (AKA 'NUS') 128-bit UUID
Bluefruit.Advertising.addService(bleuart);
// Secondary Scan Response packet (optional)
// Since there is no room for 'Name' in Advertising packet
Bluefruit.ScanResponse.addName();
Bluefruit.Advertising.restartOnDisconnect(true);
Bluefruit.Advertising.setInterval(32, 244); // in unit of 0.625 ms
Bluefruit.Advertising.setFastTimeout(30); // number of seconds in fast mode
Bluefruit.Advertising.start(0); // 0 = Don't stop advertising after n seconds
}
void connect_callback(uint16_t conn_handle) {
(void) conn_handle;
Serial.println("Connected");
}
void disconnect_callback(uint16_t conn_handle, uint8_t reason) {
(void) conn_handle;
(void) reason;
Serial.println();
Serial.println("Disconnected");
}
void loop(void) {
analogWrite(17, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness <= 0 || brightness >= 50) {
fadeAmount = -fadeAmount;
}
// wait for 500 milliseconds to see the dimming effect
delay(500);
// To print the brightness // Serial.println(brightness);
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 3.6V):
float voltage = sensorValue * (3.6 / 1023.0);
// print out the value you read:
if (voltage >= 0.8) {
Serial.print("Pin A01: ");Serial.println(voltage);
// Brakes have been pushed, shut down all autostart circuits.
// This will not affect actual engine run circuits, just the autostart
// ones. So the engine will stay running if the key is in and on.
digitalWrite(16, LOW);
digitalWrite(15, LOW);
digitalWrite(7, HIGH);
digitalWrite(11, HIGH);
crankTimer = -1;
startTimer = -1;
runTimer = -1;
Serial.println(" Kill All - Brakes pressed. ");
}
if (runTimer == 0) {
// Turn everything off from the runTimer.
digitalWrite(16, LOW);
digitalWrite(15, LOW);
digitalWrite(7, HIGH);
digitalWrite(11, HIGH);
crankTimer = -1;
startTimer = -1;
runTimer = -1;
Serial.println(" Kill All - runTimer elapsed. ");
} else if (runTimer > 0) {
runTimer = runTimer -1;
Serial.print (" runTimer "); Serial.println(runTimer);
}
if (startTimer == 0) {
digitalWrite(15, HIGH);
crankTimer = 3;
startTimer = -1;
Serial.println (" crankTimer ON ");
} else if (startTimer > 0) {
startTimer = startTimer -1;
Serial.print (" startTimer "); Serial.println(startTimer);
}
if (crankTimer == 0) {
digitalWrite(15, LOW);
crankTimer = -1;
startTimer = -1;
runTimer = 600; // 600 seconds = 10 minutes of run time before shutdown.
Serial.println (" crankTimer OFF, runTimer started. ");
} else if (crankTimer > 0) {
crankTimer = crankTimer -1;
Serial.print (" crankTimer "); Serial.println(crankTimer);
}
// Wait for new data to arrive
uint8_t len = readPacket(&bleuart, 500);
if (len == 0) return;
// Buttons
if (packetbuffer[1] == 'B') {
uint8_t buttnum = packetbuffer[2] - '0';
boolean pressed = packetbuffer[3] - '0';
Serial.print ("Button "); Serial.print(buttnum);
if (pressed) {
Serial.println(" pressed");
//bluart.print("pressed");
analogWrite(19, 50);
} else {
Serial.println(" released");
analogWrite(19, 0);
}
if (buttnum == 1) { // Turn on vehicle.
digitalWrite(16, HIGH);
startTimer = 5;
} else if (buttnum == 2) {
// Turn everything off from the button.
digitalWrite(16, LOW);
digitalWrite(15, LOW);
digitalWrite(7, HIGH);
digitalWrite(11, HIGH);
crankTimer = -1;
startTimer = -1;
runTimer = -1;
Serial.println(" Kill All - Button pressed. ");
}
}
}
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