Digital dashboard 2

2 years ago

Open source license: Public Domain

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Description

Fits the BMW E39 Instrument cluster

Designed for my electric car conversion so not stand-alone and requires the other modules to get the car to work as you know BMW computers do not work very well when you disconnect the ECU and security.

With fixes and enhancements from previous version

  1. Serial changed to CAN bus
  2. LCD Footprint fixed
  3. Better Switch mode supply
  4. number of multiplexed segments halved to 16 from 32 (still too many but works ok)

Looks to be OK, built and tested and all LEDs work. Base pic33k test code attached which will light all LEDs using a 100uS multiplexing interrupt, but no code for the LCD or CAN yet so this part is still untested and I need to get the other boards working before I go there...

Documents

E39EV Digital Dashboard PCB

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E39EV Digital Dashboard Schematic

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BOM

ID Name Designator Footprint Quantity
1 1u C18,C6,C13,C16,C17,C19,C20 1206 7
2 S2-OUT-BLACK (X16) U1 IDC18-E39-PCB 1
3 S3-OUT-WHITE (X10113) U13 IDC18-E39-PCB 1
4 S4-OUT-BLUE (X10114) U7 IDC26-E39-PCB 1
5 2N7002 Q43,Q8,Q9,Q10,Q11,Q12,Q13,Q14,Q15,Q16,Q17,Q18,Q19,Q20,Q21,Q22,Q23,Q41,Q40,Q24,Q39,Q38,Q37,Q36,Q35,Q34,Q33,Q32,Q31,Q30,Q29,Q28,Q1,Q2,Q3,Q4,Q5,Q6,Q7,Q25,Q26,Q27 WSOT-23 42
6 4K7 R27,R15,R25,R24,R16,R17,R22 R0805 7
7 1N4148W D2 SOD123 1
8 SI2301DS M15,M16,M17,M18,M19,M20,M21,M22,M23,M24,M25,M26,M27,M28,M29,M30 WSOT-23 16
9 100K R29,R30,R31,R32,R34,R35,R36,R37,R38,R39,R40,R52,R53,R54,R58,R60 R0805 16
10 EV-BUS J2 ETH_SOC 1
11 1.9K R21 R0805 1
12 10k R19 R0805 1
13 ss34 D1 SMA-DIODE 1
14 22p C15,C14 C0805 2
15 8.0Mhz Q42 HC49UP 1
16 100nF C8,C7,C9,C10,C11,C12,C2 C0805 7
17 32.768KHz X2 3*8 1
18 DS1307 U6 SOIC-8 1
19 ICSP1 J1 1X05_LOCK 1
20 100 R78,R7,R8,R9,R10,R11,R12,R13,R14,R33,R41,R18,R1,R2,R3,R4,R5,R47,R46,R45,R44,R43,R42,R26,R6 R0805 25
21 SWITCH-3x6x2.5_SMD MODE1,MODE2 SWITCH-3X6X2.5_SMD 2
22 ERC240160 U2 ERC240160_FFC 1
23 dsPIC33CK128MP508 U3 MCHP-TQFP-PT80 1
24 TPS54331DR U4 SOIC-8_150MIL 1
25 FJ3291BH LED3,LED5,LED27,LED30,LED31,LED6,LED26,LED2 FJ3291BH 8
26 ALS-PT243-3C/L177 R23 ALS-PT243 1
27 4.7uF C37,C36 1206 2
28 FJ2481BH LED33 LEDSEG_0.28_4 1
29 FM-3528RGBA-HF HANDBRAKE,ENG-FAULT,SERVICE,CHARGING,FOG-LIGHT,LH-INDICATOR,TAMPER,RH-INDICATOR,HI-BEAM,TRACTION-OFF,PROXIMITY,SEATBELT,PRE-CHARGE,CRUISE-CNTRL,AIRBAG,ABS-FAULT,BRAKE-FAULT LED-3528 17
30 FJ5361BH_C10008 LED1 LEDSEG_3_0.56_ANODE 1
31 100nF C38,C1,C24 0805 3
32 FJ3661BH LED7 LEDSEG_0.36_6 1
33 BACKLIGHT JP3 1X02 1
34 39pF C44 0805 1
35 47uF C4,C3,C5,C40 1210 4
36 AMS1117-3.3_C165482 U5 SOT-223 1
37 10uH L1 8040 1
38 10nF C35 0805 1
39 49.9K R48 0805 1
40 CR2032-BS-8-1 B1 BAT-TH_BS-8-1 1
41 2.2K R20 0805 1
42 4.7nF C22 0805 1
43 FJ11001BH (CORRECTED) LED11,LED10,LED12 LEDSEG_FJ11001BH (CORRECTED PAD) 3

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