Instructables

Step 5: Electronics Assembly

Picture of Electronics Assembly
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Here's a bill-of-materials for the quadcopter:

Qty  Sch Ref Name Value Rating Package Mfg Mfg Part#
1 Y1 Antenna, Chip       Antenna Factor ANT-2.45-CHP-T
1 B1 BALUN 2.4 GHz, 100 ohm balanced to 50 ohm unbalanced   0805 Johanson 2450BL15B100E
1 BAT Battery Connector JST-PH   Vertical JST B2B-PH-K-S(LF)(SN)
1   Battery Wire JST-PH     SparkFun PRT-08670
2 C11, C12 Cap, Ceramic 22p 6V or greater, +/- 5%, high frequency 0603 Kemet CBR06C220JAGAC
2 C14, C15 Cap, Ceramic 10p 6V or greater, +/- 10% 0603 Kemet CBR06C100JAGAC
1 C13 Cap, Ceramic 0.47p 6V or greater, +/- 5%, high frequency 0603 TDK C1608C0G1H0R5C
1 C2 Cap, Ceramic 470p 6V or greater, +/- 10% 0603 TDK C1608X7R1H471K
2 C9, C10 Cap, Ceramic 1u 6V or greater, +/- 10% 0603 Yageo CC0603ZRY5V7BB105
1 C16 Cap, Ceramic 2n2 6V or greater, +/- 10% 0603 Kemet C0603C222K5RACTU
1 C18 Cap, Ceramic 10n 6V or greater, +/- 10% 0603 Yageo CC0603KRX7R8BB103
7 C4, C5, C6, C7, C8, C17, C19 Cap, Ceramic 100n 6V or greater, +/- 10% 0603 Yageo CC0603ZRY5V9BB104
1 C1 Cap, Tantalum 150u 6V or greater, +/- 10% 1210 Nichicon F930J157KBA
1 C3 Cap, Tantalum 10u 6V or greater, +/- 10% 1210 AVX TAJB106M006RNJ
1 JP1 Female Header 2x5   0.1" pitch Sullins Connector Solutions PPPC052LFBN-RC
1 Q1 Crystal 16MHz +/- 10PPM, 10pF 5.00mm x 3.20mm Abracon ABM3B-16.000MHZ-10-1-U-T
4 D1, D2, D3, D4 Diode, Schottky     MINIMELF, SOD-123, DO-214AC Micro Commercial MBR0540
1 U2 IMU MPU-60x0     InvenSens MPU-6050
1 IC1 LDO V-Reg 3.3V 250mA or greater SOT23-5 Microchip MCP1824T-3302E/OT
1 LED1 LED       OSRAM LSG T676-P7Q7-1-0+N7P7-24-0-20-R18-ZB
1 BAT Li-polymer Battery 350mAH 20C   Zippy Z350S20C
1 SW Male Header 2x1   0.1" pitch TE Connectivity 3-644456-2
1 U1 Microcontroller ATmega128RFA1   QFN Atmel ATMEGA128RFA1-ZU
4 Q2, Q3, Q4, Q5 MOSFET N-Channel 1A, low VGS SOT23-3 Vishay SI2318DS-T1-E3 or SI2316BDS-T1-GE3
4   Motor Walkera X-Wing Motor
4   Propeller Silverlit X-Twin Propeller
4 R2, R4, R6, R8 Resistor, Chip 220R 0.1W or greater, +/- 10% 0603 Panasonic ERJ-3GEYJ221V
5 R1, R3, R5, R7, R14 Resistor, Chip 10K 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-0710KL
2 R9, R10 Resistor, Chip 1K 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-071KL
2 R12, R13 Resistor, Chip 4K7 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-074K7L
1 R11 Resistor, Chip 2K 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-072KL
1 SW Shunt Block 2x1     Sullins Connector Solutions QPC02SXGN-RC

For the transmitter:

Qty  Sch Ref Name Value Rating Package Mfg Mfg Part#
1 B1 BALUN 2.4 GHz, 100 ohm balanced to 50 ohm unbalanced   0805 Johanson 2450BL15B100E
1 BAT Battery Connector JST-PH   90 Deg JST S2B-PH-K-S(LF)(SN)
2 C16, C17 Cap, Ceramic 22p 6V or greater, +/- 5%, high frequency 0603 Kemet CBR06C220JAGAC
2 C18, C19 Cap, Ceramic 10p 6V or greater, +/- 10% 0603 Kemet CBR06C100JAGAC
1 C2 Cap, Ceramic 470p 6V or greater, +/- 10% 0603 TDK C1608X7R1H471K
2 C14, C15 Cap, Ceramic 1u 6V or greater, +/- 10% 0603 Yageo CC0603ZRY5V7BB105
7 C7, C8, C9, C10, C11, C12, C13 Cap, Ceramic 100n 6V or greater, +/- 10% 0603 Yageo CC0603ZRY5V9BB104
1 C3 Cap, Tantalum 150u 6V or greater, +/- 10% 1210 Nichicon F930J157KBA
1 C1 Cap, Tantalum 10u 6V or greater, +/- 10% 1210 AVX TAJB106M006RNJ
3 C4, C5, C6 Cap, Tantalum 4u7 6V or greater, +/- 10% 1210 AVX TAJB475K020RNJ
1 Q1 Crystal 16MHz +/- 10PPM, 10pF 5.00mm x 3.20mm Abracon ABM3B-16.000MHZ-10-1-U-T
1 JP1 Male Header 2x5   0.1" pitch FCI 67997-410HLF
1 IC1 LDO V-Reg 3.3V 250mA or greater SOT23-5 Microchip MCP1824T-3302E/OT
2 LED1, LED2 LED       OSRAM LSG T676-P7Q7-1-0+N7P7-24-0-20-R18-ZB
2 IC2, IC3 Li Battery Charger IC       Microchip MCP73831T-2ACI/OT
1 BAT Li-polymer Battery 1000mAH     Seeed Studio POW101C1M
1 U1 Microcontroller ATmega128RFA1   QFN Atmel ATMEGA128RFA1-ZU
4 R1, R2, R7, R8 Resistor, Chip 1K 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-071KL
5 R3, R4, R5, R6, R9 Resistor, Chip 4K7 0.1W or greater, +/- 10% 0603 Yageo RC0603JR-074K7L
1 Y1 RP-SMA Antenna     RP-SMA Roving Networks RN-SMA4-RP
1 Y1 RP-SMA Connector       Linx CONREVSMA003.062
1   SPDT Switch       C&K OS102011MA1QS1
1 USB USB Connector Mini-B     On Shore USB-M26FTR
1 U2 USB-to-Serial FT232RL   SOIC FTDI FT232RL
1 Wiimote Extension Wii Classic Controller       Nintendo  


A lot of the above components can be substituted, but you better know what you are doing. Most of the time, I just filter out the parameters I need, and pick the cheapest part.

I used my reflow soldering toaster oven to do the soldering, see http://www.instructables.com/id/Hack-a-Toaster-Oven-for-Reflow-Soldering/ , follow that to learn how I solder the components. Some of them are QFN chips which are very hard to solder with a traditional soldering iron.
"Version 1" was assembled with the reflow method. "Version 2" was soldered by placing a tiny amount of solder paste on the pads, then placing the component over the pads, then heating it with a heat gun. After that, flux is applied and all joints are "neatened up" using a soldering iron.

Feel free to actually have stencils made from my PCB files if you want to try the complete reflow soldering method, see my other Instructable on reflow soldering to learn how.

When soldering JST connectors to your batteries, making sure you watch your polarities. I used sticky-back velcro strips to stick the battery onto the PCB.

Use flux cleaner to clean up the circuit after you are done.

SMD soldering is easy! See my demonstration video
(this video is mostly a joke, in case you don't understand)
 
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ckhurana461 year ago
sir ,
from where to get those 2 green plates 1 for quadracopter and 1 for transmitter and what is there plate number .plz tell fast i wanted to make and sir as i wanted to order somethings at digikey.com there are comming 3 options all are same but there is comming tape and reel,cut tape and digi reel. which one i should select...... plz tell fast sir plzzzzzzzzzz
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