Also included must be: - prize
- power consumption
- size and weight
- possibly required modules or connectors for the micocontroller communication
- if nessecary: a circuit plan (created with Eagle)
FrameDJI FlameWheel F450- Cost: 169€
- Size: 450mm Diagonal
- Weight frame alone: 282g
- Takeoff Weight: 800g-1200g (1600g? Depending on sources)
- Will need cable ties
- Power distribution board already built in
- Propellers included
Microcontroller Expand |
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title | Other Microprocessors |
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| Raspberry Pi 2 Model B:- a lot of existing projects and help
- only 40 GPIO Pins
- extension-board available (http://www.gertbot.com/) for real-time tasks and controlling of actors and sensors (easy to use with existing libraries)
weight: 59g size: heigth: 85 mm, width: 56 mm, depth: 17 mm power consumption: http://raspi.tv/2015/raspberry-pi2-power-and-performance-measurement Hardware: - Prozessor: ARM710 with 900MHz
- RAM: 1024 MB
price: Reichelt: 37,95 € BeagleBone BlackIn contrast to Raspberry Pi : - better I/O capabilities with 7 channel 200kHz 12-bit ADC, 8 PWMs, 4 UARTs, quadrature encoder hardware
- don't have to buy additional components to connect up many more sensors and actuators
- large number of PWM channels on the Bones make them better for motors
- better real-time control with two 200MHz, 32-bit RISC programmable real-time units (PRUs)
- approximately 20 books available for texts, reference and projects
weight: 39.68 grams size: heigth: 86 mm, width: 53 mm power consumption: http://www.farnell.com/datasheets/1819364.pdf?COM=DesignCenter in section 6.1.7 Hardware: Processor: AM335x 1GHz ARM® Cortex-A8 512MB DDR3 RAM 4GB 8-bit eMMC on-board flash storage 3D graphics accelerator NEON floating-point accelerator 2x PRU 32-bit microcontrollers
Price: Farnell element14: €46.16 (Price is before tax) RS Components: £39.99 |
Arduino Mega 2560Links: store.arduino.cc/product/A000067 http://www.arduino.cc/en/Main/ArduinoBoardMega2560 General Informations: Price: 17,99 € Lenght | 101.52 mm | Width | 53.3 mm | Weight | 37 g |
Battery3S will presumably be enough For weight reasons: probably ca. 2000mAh? Weight: 162g Price: 28,16€ Output: 11,1V 2 x http://www.hobbyking.com/hobbyking/store/__17286__Turnigy_nano_tech_2000mah_3S_15_25C_Lipo_AIRSOFT_Pack.html --> Voltage Controller (e.g. IC7805) required, probably multiple? Low cost, Arndt will bring some, maybe we can buy them off him, if he doesn't mind? --> May need some that are lossless? -> mc35063 but higher cost! --> Some people say we will need a step down module, because Voltage Controllers will offer too much variation in their voltage/current: http://www.electrodragon.com/product/lm2596s-adj-dc-dc-small-tiny-adjustable-step-down-module-3-40vin-1-5-35vout/ is recommended, but only outputs 3A?
==> Need a lot more information, might look into it more tomorrow?
LiPo-WarnersConnection to the microcontroller will have to be done by ourselves. So I don't know how many pins we might need. Will have to talk to someone who might know more, internet doesn't really give much insight. Maybe I'll make a post about it somewhere? Links: Amazon Cost: 7€ weight: 9g
MotorsDJI Motor 2212/920 rpm/V- Voltage: 11,1 bis 14,4V
- Standard Current: 15-25A
- Max Current: 30A
- Required Batteries: 3S-4S LiPos
- Weight: 56g each (including Propeller Adapter)
Calculation Site: http://www.ecalc.ch/xcoptercalc.php?ecalc&lang=de In case this helps anyone...I don't think my calculations were correct so it didn't help me much Electronic Speed Controller (ESC)DJI Brushless Regler 30A OPTO (?)- Voltage: 6-16.8V
- Connects to a receiver -> Might need to reverse engineer that thing or the cable, don't know much about that
- Orange Cable carries signal: freq. 30hz-450hz (most people i've seen used 400hz)
- Brown Cable is ground, red one useless apparently
http://wiki.dji.com/en/index.php/ESC http://www.sarkanyellato.hu/wp-content/uploads/2011/10/RC-Timer-10.18.30.40A-ESC-Instruction.pdf Replacement parts for Controller/Arms: https://copterdeluxe.com/Multi-Rotor-Copter-Ersatzteile-DJI-Hobby-F450 (Currently not available?) Gyro & Acceleration SensorsMPU-9150. All in one kit. Gyro, Acceleration and Compass. Links: Amazon: http://www.amazon.de/GY-9150-MPU-9150-Achsen-Kompass-Accelerometer-SE05014/dp/B00VRJEA7C/ref=sr_1_1?ie=UTF8&qid=1430578388&sr=8-1&keywords=MPU-9150 Specification: http://www.invensense.com/mems/gyro/documents/PS-MPU-9150A-00v4_3.pdf Cost: 20.59€ Operating Voltage Supply: 2.4V-3.46V Logic Supply Voltage: 1.8V +- 5% or VDD Communication via I2C-Bus
Proximity Sensors4-Pin Ultrasonic-Module HC-SR04Probably we will need 10 of this sensors, but maybe 6 will be enough.
Links: Amazon, datasheet, short instructions Cost: 10 x approx. 2€ ≈ 20€ Power Supply: +5VDV, 10 x 15mA working current weght: 8.5g Pins: 2 GPIO, VCC, GND - VCC = +5VDC (GPIO)
- Trig = Trigger input of Sensor (5V Digital GPIO)
- Echo = Echo output of Sensor (5V Digital GPIO)
Important: Outputs 5V. If the microcontroller can only handle 3.3V inputs, we need to build an easy voltage divider. - GND = GND (GPIO)
Code Block |
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language | cpp |
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title | Code Beispiel für Ardunio |
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linenumbers | true |
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collapse | true |
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| /*
HC-SR04 Ping distance sensor]
VCC to arduino 5v GND to arduino GND
Echo to Arduino pin 13 Trig to Arduino pin 12
Red POS to Arduino pin 11
Green POS to Arduino pin 10
560 ohm resistor to both LED NEG and GRD power rail
More info at: http://goo.gl/kJ8Gl
Original code improvements to the Ping sketch sourced from Trollmaker.com
Some code and wiring inspired by http://en.wikiversity.org/wiki/User:Dstaub/robotcar
*/
#define trigPin 13
#define echoPin 12
#define led 11
#define led2 10
void setup() {
Serial.begin (9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(led, OUTPUT);
pinMode(led2, OUTPUT);
}
void loop() {
long duration, distance;
digitalWrite(trigPin, LOW); // Added this line
delayMicroseconds(2); // Added this line
digitalWrite(trigPin, HIGH);
// delayMicroseconds(1000); - Removed this line
delayMicroseconds(10); // Added this line
digitalWrite(trigPin, LOW);
duration = pulseIn(echoPin, HIGH);
distance = (duration/2) / 29.1;
if (distance < 4) { // This is where the LED On/Off happens
digitalWrite(led,HIGH); // When the Red condition is met, the Green LED should turn off
digitalWrite(led2,LOW);
}
else {
digitalWrite(led,LOW);
digitalWrite(led2,HIGH);
}
if (distance >= 200 || distance <= 0){
Serial.println("Out of range");
}
else {
Serial.print(distance);
Serial.println(" cm");
}
delay(500);
} |
Radio Telemetry KitAukru HC-06 Wireless 4 Pins Bluetooth RF Transceiver Serial ModuleLinks: Amazon, instructions, instructions, instructions Cost: 9€ size: 4.3 * 1.6 * 0.7cm weight: 9g
Power Supply: 3.3V - 6V, approx. 50mA Pins: 2 GPIO, VCC, GND - VCC = +3.3VDC / +5VDC (GPIO)
- TXD = Trigger input of Sensor (RXD (serial) Digital 0)
- RXD = Echo output of Sensor (TXD (serial) Digital 1)
- GND = GND (GPIO)
Price summary- 253,75€ + Microcontroller
- If we use the Arduino Mega from the office, we won't need any extra cost for the microcontroller
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