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G.A.B.E.-Filght-Computer

Good Avionics, Bad Engineer

What is it?

The GABE flight computer is an open source rocket flight computer for controlling amateur or model rockets. It's a 4 layer PCB and pretty standard. It has a CoCom locked GPS, and 2 IMUs, a BMP390, 8 different servo header pins and can be powered off of a 12-26v battery. It uses and arm switch to power it on and has 6 pyro channels. It uses the MIMXRT1062DVJ6B with a teensy bootloader.

image

I tried to make it look nice but IDK, also that cad needs some work so thats why it's not shown.

Note

The code is a demo of the Servos, LED, Pyros, and buzzer. This is so I have A low or very low ITAR risk. :)

Why?

For aboout 3 years at this point I have wanted to make a Fin controlled rocket, and my first flight computter was, well a first. It didn't work really well and ended up frying itself via the servo PWM lines (I fixed that on this one with a level shifter). It was also large and bulky and the wire connectors were to small, not to mention it was ugly. So I set out to make this one. I wanted it to look nice and work well and use mostly SMD parts, and for the most part I did..

PICTURES

image image image

BOM

Some parts have a value different from what it should be, this is because it was only one I could find. :)

Part Cost (all parts) Count Supplyer Link Part ID Use Value
MIMXRT1062DVJ6B $11.93 1 Digikey MIMXRT1062DVJ6B NXP USA Inc. | Integrated Circuits (ICs) | DigiKey U5 MPU
BNO055 $12.34 1 Digikey BNO055 Bosch Sensortec | Sensors, Transducers | DigiKey U1 IMU
TXB0108PWRG4 $1.41 1 Digikey TXB0108PWRG4 Texas Instruments | Integrated Circuits (ICs) | DigiKey U6 Level Shifter
RTAN0805BKE10K0 $0.34 1 Digikey RTAN0805BKE10K0 Stackpole Electronics Inc | Resistors | DigiKey R1 Resistor 10KΩ
FC-135R 32.7680KF-A0 $2.13 3 Digikey FC-135R 32.7680KF-A0 EPSON | Crystals, Oscillators, Resonators | DigiKey X1,X2,X4 Crystal 32.7680KHZ
CHV0805N250220FCT $2.12 4 Digikey CHV0805N250220FCT Cal-Chip Electronics, Inc. | Capacitors | DigiKey C1,C2,C5,C6 Capacitor 22PF
CC0805KRX7R9BB104 $0.48 6 Digikey CC0805KRX7R9BB104 YAGEO | Capacitors | DigiKey C3,C4,C7,C8,C11,C12 Capacitor 0.1UF
BNO085 $13.05 1 Digikey BNO085 CEVA Technologies, Inc. | Sensors, Transducers | DigiKey U2 IMU
BMP390 $3.15 1 Digikey BMP390 Bosch Sensortec | Sensors, Transducers | DigiKey U3
NEO-M9N-00B $27.00 1 Digikey NEO-M9N-00B u-blox | RF and Wireless | DigiKey U4 GPS
CONSMA001-C-G $2.79 1 Digikey CONSMA001-C-G TE Connectivity Linx | Connectors, Interconnects | DigiKey X3 SMA connector
RG0603R-330-D-T10 $0.16 1 Digikey RG0603R-330-D-T10 Susumu | Resistors | DigiKey R2 Resistor 33Ω
BLM15PX121SN1D $0.30 3 Digikey BLM15PX121SN1D Murata Electronics | Filters | DigiKey FB1-FB3 Ferrite Bead 120Ω
CC0805JRNPO9BN470 $0.10 1 Digikey CC0805JRNPO9BN470 YAGEO | Capacitors | DigiKey C9 Capacitor 47PF
ML414H IV01E $1.84 1 Digikey ML414H IV01E Seiko Instruments | Battery Products | DigiKey BT1 Battery Holder
PMEG4005AEA-QX $0.32 1 Digikey https://www.digikey.com/en/products/detail/nexperia-usa-inc/PMEG4005AEA-QX/17295512 D1 Diode
RG0603P-102-B-T10 $0.20 1 Digikey RG0603P-102-B-T10 Susumu | Resistors | DigiKey R3 Resistor 1KΩ
C0805C105K9RACTU $0.15 1 Digikey C0805C105K9RACTU KEMET | Capacitors | DigiKey C10 Capacitor 1UF
BL-HBXJXGX32L $0.50 1 Digikey BL-HBXJXGX32L American Bright Optoelectronics Corporation D2 LED
XRCGB24M000F3M00R0 $0.30 1 Digikey XRCGB24M000F3M00R0 Murata Electronics | Crystals, Oscillators, Resonators | DigiKey Y1 Crystal 24MHZ
MLZ2012N4R7LT000 $0.10 1 Digikey MLZ2012N4R7LT000 TDK Corporation | Inductors, Coils, Chokes | DigiKey L1 Inductor 4.7UH
112J-TDAR-R01 $2.52 1 Digikey 112J-TDAR-R01 ATTEND Technology | Connectors, Interconnects | DigiKey K1 SD card holder
BAT54CTB6_R1_00001 $0.25 1 Digikey BAT54CTB6_R1_00001 Panjit International Inc. | Discrete Semiconductor Products | DigiKey U$1 Diode
SKRPACE010 $0.21 1 Digikey SKRPACE010 Alps Alpine | Switches | DigiKey S1 Switch
W25Q64JVXGIM $1.20 1 PJRC Bootloader Chip for DIY Teensy 4.0 & 4.1 Projectsects U9 Flash Chip
MKL02Z32 $6.25 1 PJRC Bootloader Chip for DIY Teensy 4.0 & 4.1 Projectsects U8 Bootloader
W25N01GVZEIG TR $3.01 1 Digikey W25N01GVZEIG TR Winbond Electronics | Integrated Circuits (ICs) | DigiKey U10 Flash Chip
SMTB-1240-S-R $1.35 1 Digikey SMTB-1240-S-R PUI Audio, Inc. | Audio Products | DigiKey LS1 Buzzer
IRLML6344TRPBF $2.10 6 Digikey IRLML6344TRPBF Infineon Technologies | Discrete Semiconductor Products | DigiKey Q2-Q7 Mosfet
LM7805MPX/NOPB $1.38 1 Digikey LM7805MPX/NOPB Texas Instruments | Integrated Circuits (ICs) | DigiKey VR1 Voltage Reguator
TLV75533PDBVR $0.32 1 Digikey TLV75533PDBVR Texas Instruments | Integrated Circuits (ICs) | DigiKey U7 Voltage Reguator
AK100/2DS-5.0-V-GREY $5.64 12 Digikey https://www.digikey.com/en/products/detail/ptr-hartmann/AK100-2DS-5-0-V-GREY/24787150 U$2-U$13 Terminal Block
GCJ21BL8YA224KA01L $3.52 11 Digikey GCJ21BL8YA224KA01L Murata Electronics | Capacitors | DigiKey C13,C14,C17,C18,C20,C23,C26,C31,C33,C34,C36 Capacitor .22UF
C0805C200J3HACAUTO $0.26 2 Digikey C0805C200J3HACAUTO KEMET | Capacitors | DigiKey C15,C16 Capacitor 20PF
GRM21BR61H475KE51L $0.95 5 Digikey GRM21BR61H475KE51L Murata Electronics | Capacitors | DigiKey C19,C21,C24,C27,C30 Capacitor 4.7UF
CGA4J1X7R1V225K125AC $0.46 1 Digikey CGA4J1X7R1V225K125AC TDK Corporation | Capacitors | DigiKey C25 Capacitor 2.2UF
CC0805KRX7R8BB103 $0.10 1 Digikey CC0805KRX7R8BB103 YAGEO | Capacitors | DigiKey C22 Capacitor 10NF
GRM21BR6YA106KE43L $1.36 4 Digikey GRM21BR6YA106KE43L Murata Electronics | Capacitors | DigiKey C28,C29,C32,C35 Capacitor 10UF
C0805C120J3GACTU $0.44 2 Digikey C0805C120J3GACTU KEMET | Capacitors | DigiKey C37,C38 Capacitor 12pF
UJ2-MIBH-G-SMT-TR $0.44 1 Digikey UJ2-MIBH-G-SMT-TR Same Sky (Formerly CUI Devices) | Connectors, Interconnects | DigiKey J1 USB Con
B4B-XH-A $0.17 1 Digikey B4B-XH-A JST Sales America Inc. | Connectors, Interconnects | DigiKey J2 JST Con
61300311121 $0.96 8 Digikey https://www.digikey.com/en/products/detail/würth-elektronik/61300311121/4846825 M1-M8 Header pins
DMG2305UX-7 $0.18 1 Digikey DMG2305UX-7 Diodes Incorporated | Discrete Semiconductor Products | DigiKey Q1 Mosfet
SDR10EZPF2201 $0.44 2 Digikey SDR10EZPF2201 Rohm Semiconductor | Resistors | DigiKey R4,R5 Resistor 2.2kΩ
SDR10EZPF1003 $0.44 2 Digikey SDR10EZPF1003 Rohm Semiconductor | Resistors | DigiKey R6,R7 Resistor 100kΩ
SDR10EZPF2204 $0.22 1 Digikey SDR10EZPF2204 Rohm Semiconductor | Resistors | DigiKey R8 Resistor 2.2MΩ
SDR10EZPF1R00 $1.54 7 Digikey SDR10EZPF1R00 Rohm Semiconductor | Resistors | DigiKey R9,R13,R15,R17,R19,R21,R23 Resistor
RLT1220-F-5R00-FNH $0.47 1 Digikey RLT1220-F-5R00-FNH Delta Electronics/Cyntec | Resistors | DigiKey R10 Resistor
RK73H2ATTD64R9F $0.10 1 Digikey RK73H2ATTD64R9F KOA Speer Electronics, Inc. | Resistors | DigiKey R11 Resistor 65Ω (64.9)
SDR10EZPF4700 $1.32 6 Digikey SDR10EZPF4700 Rohm Semiconductor | Resistors | DigiKey R12,R14,R16,R18,R20,R22 Resistor 470Ω
RT0805BRD07723RL $0.17 1 Digikey RT0805BRD07723RL YAGEO | Resistors | DigiKey R24 Resistor 722Ω (723)
RK73H2ATTD1691F $0.10 1 Digikey RK73H2ATTD1691F KOA Speer Electronics, Inc. | Resistors | DigiKey R25 Resistor 1700Ω (1.69k)
COST OF MAIN PCB AND SMD-Stencil $81.42 1 PCB Way PCB
TOTAL $200.00 120

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