Front dash unit
About the Front dash unit PCB
Front dash unit is an open source AVR/Arduino PCB design by HKUST-Red-Bird-Racing-EVRT, published on GitHub. It is a 2-layer board measuring 101 × 63.3 mm, with 90 components from 58 distinct parts.
Its main chip is the BQ76940DBT, from the AVR/Arduino family. Other key parts include the ATMEGA328P-A, B0505MT-1WR4, TPS54302, TJA1050T_CM_118 and MCP2515-xST. By type, the board carries 33 resistors, 28 capacitors, 10 ICs, 8 connectors, 4 crystals and 2 diodes.
From the project
ELEC Github Repo for Gen 6
Main components on the Front dash unit
Front dash unit bill of materials (BOM)
90 components, 58 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BQ76940DBT ATmega328-A | TQFP-32_7x7mm_P0.8mm_L | U1 |
| 1 | ATMEGA328P-A AMS1117 | SOT-223-3_TabPin2_Handsolder | U2 |
| 1 | B0505MT-1WR4 TXS0104ED | SOIC-14_3.9x8.7mm_P1.27mm | U5 |
| 1 | TPS54302 | SOT-23-6_Handsoldering_Extended_RMC | U6 |
| 3 | TJA1050T_CM_118 | SOIC-8_3.9x4.9mm_P1.27mm_RMC_Handsolder | U8, U11, U13 |
| 3 | MCP2515-xST | TSSOP-20_4.4x6.5mm_P0.65mm | U9, U10, U12 |
| 1 | HC-12 | MA05-1 | M1 |
| 1 | KY2N7002 Q_PMOS_GDS | TSOT-23 | Q1 |
| 1 | 8MHZ 16MHz | Crystal_HC49-U_Vertical | Y2 |
| 3 | 20MHz | Crystal_HC49-U_Vertical | Y5, Y6, Y7 |
| 2 | CONN_01X05 Conn_01x04_Socket | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J3, J4 |
| 1 | Conn_01x02_Socket | JST_VH_B2P-VH-B_1x02_P3.96mm_Vertical | J5 |
| 1 | Conn_01x04_Socket | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J6 |
| 3 | Conn_01x02_Socket | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J7, J11, J12 |
| 1 | Micro_SD_Card | microSD_HC_Molex_104031-0811 | J9 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical | AVR-ISP1 |
| 1 | SW_Push | SW_SPST_CK_RS282G05A3 | SW1 |
| 1 | 1N4148W LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | 1N4148W D_Zener | D_SMA_Handsoldering | D2 |
| 1 | 10uH | L_6.3x6.3_H3 | L2 |
Show 38 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 1UF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C2, C9, C12 |
| 1 | 1UF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C3 |
| 1 | 1UF 75pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C4 |
| 3 | 1UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C5, C7, C8 |
| 2 | 1UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C10, C11 |
| 1 | 12PF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C18 |
| 4 | 100NF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C22, C23, C33, C34 |
| 2 | 10UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C24, C30 |
| 3 | 100NF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C25, C26, C27 |
| 2 | 22PF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C28, C29 |
| 1 | 4.7UF 22pF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C31 |
| 1 | 4.7UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C32 |
| 1 | 10UF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C35 |
| 1 | 22UF 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C36 |
| 1 | 22UF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C37 |
| 1 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_L | C38 |
| 1 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R1 |
| 1 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R2 |
| 6 | 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R3, R4, R5, R6, R13, R14 |
| 1 | 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R7 |
| 3 | 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R8, R10, R86 |
| 3 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R9, R11, R12 |
| 1 | 500K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R15 |
| 1 | 10M 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R16 |
| 1 | 10K 13.3k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R17 |
| 2 | 4.7K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R18, R20 |
| 1 | 10K 10M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R19 |
| 1 | 120R 120 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R21 |
| 1 | 4.7K 4.7k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R22 |
| 1 | 174K 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R23 |
| 1 | 10K 49.9 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R24 |
| 1 | 174K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R25 |
| 1 | 10K 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R26 |
| 1 | 10M 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R27 |
| 2 | 10K 3.3k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R28, R29 |
| 1 | 10K 2.2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R30 |
| 1 | 511K 511k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R39 |
| 1 | 105K 105k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_L | R40 |
Front dash unit design files
The KiCad project lives in the HKUST-Red-Bird-Racing-EVRT/GEN6_ELEC repository on GitHub; these links point at the commit this page was built from.
Front dash unit: common questions
What microcontroller does the Front dash unit use?
The Front dash unit is built around the BQ76940DBT, from the AVR/Arduino family.
How big is the Front dash unit PCB?
The Front dash unit measures 101 × 63.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Front dash unit?
90 components, from 58 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Front dash unit design files?
From the HKUST-Red-Bird-Racing-EVRT/GEN6_ELEC repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Front dash unit design in my own project?
The repository has no license, so all rights stay with HKUST-Red-Bird-Racing-EVRT. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Front dash unit without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
More boards in GEN6_ELEC
AVR/ArduinoAMS SLAVE TEST
68 × 110 mm191 parts2LNo license0
AVR/ArduinoAMS slave
68 × 110 mm189 parts2LNo license0
AVR/ArduinoBDUCU
140 × 60 mm169 parts2LNo license0
AVR/ArduinoVCU V3.3
114 × 95 mm145 parts2LNo license0
AVR/ArduinoCharger
100 × 100 mm126 parts2LNo license0
AVR/ArduinoTSALG ACCUM V2
140 × 60 mm88 parts2LNo license0
AVR/ArduinoSSRU v4.0
95 × 78 mm68 parts2LNo license0
AVR/ArduinoGen 6 ts indicator v1.0
66.8 × 60 mm46 parts2LNo license0
VTAP
68 × 171.5 mm36 parts2LNo license0
AVR/Arduino600 to 12V dc
66.8 × 60 mm26 parts2LNo license0
Similar boards
AVR/ArduinoRedox keyboard
mattdibi
162.2 × 126.5 mm77 parts2LMIT2.0k
AVR/ArduinoModuleV450
stuartpittaway
30 × 61.4 mm39 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoV4
30 × 50 mm38 parts2LCC-BY-NC-4.01.1k
AVR/ArduinoDiscipline
coseyfannitutti
304.9 × 122.8 mm170 parts2LCC-BY-NC-4.01.0k
AVR/ArduinoMegadesk
gcormier
41.7 × 32.2 mm23 parts2LGPL-3.0818
AVR/ArduinoEasyduino Atmega Nano
Hanqaqa
43.4 × 18 mm30 parts4LCERN-OHL-P-2.0746