For hardware I am using a bluefruit feather and the 8 servo motor wing, a 4 AA battery pack connected to the blue power connector on the motor wing, and 8 of the SG51R microservos (all from Adafruit except the battery pack).
My goal: using the bluefruit app on an iphone, use the control pad screen, each time I tap one of the buttons (four arrows and buttons 1-4), one of 7 servos will move from 0 - 180, the last button will return all of the servos to the 0 position. If I can get one to move, I think I can figure out the rest.
I started with the "controller" example in the bluefruit library and the servo example in the Adafruit PWM servo driver library as starters. Everything connects fine, when I open the app in the controller screen it will print to the serial monitor "button 1 pressed". This is what I thought would move servo 0 when I pressed button 1:
(So I need to know, how to write the condition for my if statement so I know how to say "if button 1 has been pressed", and how to move a servo on position 0 from 0 to 180 degrees.)
Code: Select all
if (packetbuffer[1] == 1) {
pwm.setPWM(0, 0, SERVOMAX);
delay(2000);
Serial.println("servo 0 should just have moved!");
}
Code: Select all
/*********************************************************************
This is an example for our nRF51822 based Bluefruit LE modules
This is the program for the bluetooth controller rose for the Beauty and
the Beast musical. It uses the Bluefruit app for iphone from Adafruit.
*********************************************************************/
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
#include <string.h>
#include <Arduino.h>
#include <SPI.h>
#if not defined (_VARIANT_ARDUINO_DUE_X_) && not defined (_VARIANT_ARDUINO_ZERO_)
#include <SoftwareSerial.h>
#endif
#include "Adafruit_BLE.h"
#include "Adafruit_BluefruitLE_SPI.h"
#include "Adafruit_BluefruitLE_UART.h"
#include "BluefruitConfig.h"
/*=========================================================================
APPLICATION SETTINGS
FACTORYRESET_ENABLE Perform a factory reset when running this sketch
Enabling this will put your Bluefruit LE module
in a 'known good' state and clear any config
data set in previous sketches or projects, so
running this at least once is a good idea.
When deploying your project, however, you will
want to disable factory reset by setting this
value to 0. If you are making changes to your
Bluefruit LE device via AT commands, and those
changes aren't persisting across resets, this
is the reason why. Factory reset will erase
the non-volatile memory where config data is
stored, setting it back to factory default
values.
Some sketches that require you to bond to a
central device (HID mouse, keyboard, etc.)
won't work at all with this feature enabled
since the factory reset will clear all of the
bonding data stored on the chip, meaning the
central device won't be able to reconnect.
MINIMUM_FIRMWARE_VERSION Minimum firmware version to have some new features
MODE_LED_BEHAVIOUR LED activity, valid options are
"DISABLE" or "MODE" or "BLEUART" or
"HWUART" or "SPI" or "MANUAL"
-----------------------------------------------------------------------*/
#define FACTORYRESET_ENABLE 1
#define MINIMUM_FIRMWARE_VERSION "0.6.6"
#define MODE_LED_BEHAVIOUR "MODE"
/*=========================================================================*/
// Create the bluefruit object, either software serial...uncomment these lines
/*
SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);
Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,
BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);
*/
/* ...or hardware serial, which does not need the RTS/CTS pins. Uncomment this line */
// Adafruit_BluefruitLE_UART ble(BLUEFRUIT_HWSERIAL_NAME, BLUEFRUIT_UART_MODE_PIN);
/* ...hardware SPI, using SCK/MOSI/MISO hardware SPI pins and then user selected CS/IRQ/RST */
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
/* ...software SPI, using SCK/MOSI/MISO user-defined SPI pins and then user selected CS/IRQ/RST */
//Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_SCK, BLUEFRUIT_SPI_MISO,
// BLUEFRUIT_SPI_MOSI, BLUEFRUIT_SPI_CS,
// BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
// Adding the servo driver
Adafruit_PWMServoDriver pwm = Adafruit_PWMServoDriver();
#define SERVOMIN 150 // this is the 'minimum' pulse length count (out of 4096)
#define SERVOMAX 600 // this is the 'maximum' pulse length count (out of 4096)
// our servo # counter
uint8_t servonum = 0;
uint8_t pulselength;
uint8_t servodegrees;
// A small helper
void error(const __FlashStringHelper*err) {
Serial.println(err);
while (1);
}
// function prototypes over in packetparser.cpp
uint8_t readPacket(Adafruit_BLE *ble, uint16_t timeout);
float parsefloat(uint8_t *buffer);
void printHex(const uint8_t * data, const uint32_t numBytes);
// the packet buffer
extern uint8_t packetbuffer[];
/**************************************************************************/
/*!
@brief Sets up the HW an the BLE module (this function is called
automatically on startup)
*/
/**************************************************************************/
void setup(void)
{
// while (!Serial); // required for Flora & Micro
// delay(500);
Serial.begin(115200);
Serial.println(F("Adafruit Bluefruit App Controller Example"));
Serial.println(F("-----------------------------------------"));
/* Initialise the module */
Serial.print(F("Initialising the Bluefruit LE module: "));
// Starting the servo wing.
pwm.begin();
pwm.setPWMFreq(60); // Analog servos run at ~60 Hz updates
// mapping the frequency to degrees for moving the servo.
pulselength = map(servodegrees, 0, 180, SERVOMIN, SERVOMAX);
if ( !ble.begin(VERBOSE_MODE) )
{
error(F("Couldn't find Bluefruit, make sure it's in CoMmanD mode & check wiring?"));
}
Serial.println( F("OK!") );
if ( FACTORYRESET_ENABLE )
{
/* Perform a factory reset to make sure everything is in a known state */
Serial.println(F("Performing a factory reset: "));
if ( ! ble.factoryReset() ){
error(F("Couldn't factory reset"));
}
}
/* Disable command echo from Bluefruit */
ble.echo(false);
Serial.println("Requesting Bluefruit info:");
/* Print Bluefruit information */
ble.info();
Serial.println(F("Please use Adafruit Bluefruit LE app to connect in Controller mode"));
Serial.println(F("Then activate/use the sensors, color picker, game controller, etc!"));
Serial.println();
ble.verbose(false); // debug info is a little annoying after this point!
/* Wait for connection */
while (! ble.isConnected()) {
delay(500);
}
Serial.println(F("******************************"));
// LED Activity command is only supported from 0.6.6
if ( ble.isVersionAtLeast(MINIMUM_FIRMWARE_VERSION) )
{
// Change Mode LED Activity
Serial.println(F("Change LED activity to " MODE_LED_BEHAVIOUR));
ble.sendCommandCheckOK("AT+HWModeLED=" MODE_LED_BEHAVIOUR);
}
// Set Bluefruit to DATA mode
Serial.println( F("Switching to DATA mode!") );
ble.setMode(BLUEFRUIT_MODE_DATA);
Serial.println(F("******************************"));
}
/**************************************************************************/
/*!
@brief Constantly poll for new command or response data
*/
/**************************************************************************/
void loop(void)
{
/* Wait for new data to arrive */
uint8_t len = readPacket(&ble, BLE_READPACKET_TIMEOUT);
if (len == 0) return;
/* Got a packet! */
// printHex(packetbuffer, len);
// Move servo 0, if button 1 is pressed
if (packetbuffer[1] == 1) {
pwm.setPWM(0, 0, SERVOMAX);
delay(2000);
Serial.println("servo 0 should just have moved!");
}
// 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");
} else {
Serial.println(" released");
}
}
// GPS Location
if (packetbuffer[1] == 'L') {
float lat, lon, alt;
lat = parsefloat(packetbuffer+2);
lon = parsefloat(packetbuffer+6);
alt = parsefloat(packetbuffer+10);
Serial.print("GPS Location\t");
Serial.print("Lat: "); Serial.print(lat, 4); // 4 digits of precision!
Serial.print('\t');
Serial.print("Lon: "); Serial.print(lon, 4); // 4 digits of precision!
Serial.print('\t');
Serial.print(alt, 4); Serial.println(" meters");
}
// Accelerometer
if (packetbuffer[1] == 'A') {
float x, y, z;
x = parsefloat(packetbuffer+2);
y = parsefloat(packetbuffer+6);
z = parsefloat(packetbuffer+10);
Serial.print("Accel\t");
Serial.print(x); Serial.print('\t');
Serial.print(y); Serial.print('\t');
Serial.print(z); Serial.println();
}
// Magnetometer
if (packetbuffer[1] == 'M') {
float x, y, z;
x = parsefloat(packetbuffer+2);
y = parsefloat(packetbuffer+6);
z = parsefloat(packetbuffer+10);
Serial.print("Mag\t");
Serial.print(x); Serial.print('\t');
Serial.print(y); Serial.print('\t');
Serial.print(z); Serial.println();
}
// Gyroscope
if (packetbuffer[1] == 'G') {
float x, y, z;
x = parsefloat(packetbuffer+2);
y = parsefloat(packetbuffer+6);
z = parsefloat(packetbuffer+10);
Serial.print("Gyro\t");
Serial.print(x); Serial.print('\t');
Serial.print(y); Serial.print('\t');
Serial.print(z); Serial.println();
}
// Quaternions
if (packetbuffer[1] == 'Q') {
float x, y, z, w;
x = parsefloat(packetbuffer+2);
y = parsefloat(packetbuffer+6);
z = parsefloat(packetbuffer+10);
w = parsefloat(packetbuffer+14);
Serial.print("Quat\t");
Serial.print(x); Serial.print('\t');
Serial.print(y); Serial.print('\t');
Serial.print(z); Serial.print('\t');
Serial.print(w); Serial.println();
}
}