Dual CANbus monitor and instrumentation cluster. Presently tuned for the Nissan Leaf EV.

Dependencies:   SPI_TFTx2_ILI9341 TFT_fonts TOUCH_TFTx2_ILI9341 mbed

Fork of CANary_corrupt by Tick Tock

After adding the LPC1768 platform, import as a program and do not select the "update to latest revision" box

User Guide

Eagle Schematic and Board design

/media/uploads/TickTock/canaryr6.zip

/media/uploads/TickTock/canary_sch.jpg

/media/uploads/TickTock/canaryr6brd.jpg

For LCD Rev 1.01:

/media/uploads/TickTock/lcdsch.jpg

For VCD Rev 2.00:

/media/uploads/TickTock/lcdr2.jpg

Parts List

qtyinstancepart #packagesupplierDescription
1BAT3Vhttp://www.ebay.com/itm/10x-CR2032-SMD-Battery-Holder-for-CR2032-Battery-/180938057979?pt=LH_DefaultDomain_0&hash=item2a20bfa8fbLithium 2032 coin battery holder
4C1-C4ECST1DC106R6032Tantalium capacitor 10uF
3FC1-FC3ZF1-20-01-T-WThttp://www.samtec.com/cable-systems/idc-ffc/ffc/zero-insertion.aspx20 conductor 1mm pitch flex cable connector (optional)
1FJ-20-R-08.00-4http://www.samtec.com/cable-systems/idc-ffc/ffc/zero-insertion.aspx8\" 20 conductor 1mm pitch flex connector, end reversed (optional)
2H1-H4(DON'T populate H1-H4 headers - solder mbed directly)
1H5http://www.ebay.com/itm/221186042943?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l26491x12 .1\" pitch header (optional)
1H62x6 .1\" pitch header (optional)
2IC1,IC2VP230LMDSOP8http://www.ebay.com/itm/130488665247?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649canbus transciever
1IC3LM1117-5VSOT2235V regulator
5JP*2 pin .1\" jumper header
1mbedLPC1768http://www.ebay.com/itm/200830573509?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649mbed uC
2Q1,Q22N2222SOT23General purpose NPN transistor
1R1R393M120639K resistor
1R2R103M120610K resistor
4R4-R6R102M12061K resistor
1R3R500M120650 Ohm resistor
2TR1-TR5ZJYS81R5-2PL51TG01http://www.digikey.com/product-detail/en/ZJYS81R5-2PL51T-G01/445-2223-1-ND/765232CM Choke
1Z11N5340BGC1702-15http://www.ebay.com/itm/150878122425?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l26496V, 5W Zener Diode
1Z1DC-DC conveterhttp://www.ebay.com/itm/251142727849?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l264912V-7V, 3W DC-DC converter
1X1USBhttp://www.ebay.com/itm/New-Vertical-USB-2-0-A-pcb-connector-socket-USB-A-Type-/300553895292?pt=LH_DefaultDomain_0&hash=item45fa687d7cvertical USB connector
2LCD0,LCD1TFThttp://www.mikroe.com/add-on-boards/display/tft-proto/320x240 LCD with touch screen
1E0Enclosurehttp://www.shapeways.com/model/1077799/canary.html?li=user-profile&materialId=63d printed enclosure

Assembly

1) LCD Displays

I found ribbon cable is a nice way to organize the wires to the displays. There are two versions of the display and each must be wired differently. The original project used HW REV. 1.01. For that version, you'll need 12 conductors and I connected them in the following order:

1LED+
2LED-
3RST
4SDI
5WR/SCLK
6CS
7X+
8X-
9Y+
10Y-
11VDD
12GND

If, instead, you have HW REV 2.0, you will need 13 conductors with the following order:

1LED+
2LED-
3RST
4SDI
5RS (SCLK)
6WR (DC)
7CS
8X+
9X-
10Y+
11Y-
12VDD
13GND

First I connected all the GND connections (2 GND & IM0, IM1, IM3 for REV1.01 or 2 GND, RD, & IM0 for REV2.00). Do not connect the bottom GND until you have the ribbon cable connected. After making all the ribbon cable connections (connecting the GND of the ribbon cable to the bottom GND pad), solder the GND bar from the previous step to the back of the bottom GND connection. Finally, make a connection from the back side 3.3V pin to IM2 for REV1.01 or to IM1,IM2,&IM3 for REV2.00. Take a break and repeat for the second display.

Examples of REV1.01 boards:

/media/uploads/TickTock/lcdtop.jpg /media/uploads/TickTock/lcdbot.jpg

Examples of REV2.00:

/media/uploads/TickTock/rev2front.jpg /media/uploads/TickTock/rev2back.jpg

Once the two displays are complete combine all wires except CS0, CS1, X+, X-, Y+, and Y-. Connect X- of the left display to X+ of the right. Similarly connect Y- of the left display to Y+ of the right. Insulate any exposed wires.

2) PCB

Refer to the schematics to place all the components on the board. If you plan to install into the CANary 3D enclosure, DO NOT install the battery holder or the socket for the mbed and, instead, connect two wires to the VB and GND pads nearby. You will have to install the battery holder against the back wall to avoid interfering with the right-hand display and the mbed will have to be directly soldered. I have not found a socket with a low enough profile to fit in the space provided (depth of enclosure is limited by the space behind the center console). Also, I recommend keeping as much lead as possible on the Zener diode (bending it as shown to clear the back wall). Although it is operating well within parameters, the Zener gets quite hot during extended operation and the leads help dissipate the heat and keep it away from the PCB and other components.Update: Several Zeners have failed resulting in damage to some users boards so I recommend using a DC-DC converter instead to bring the 12V down to 7V.

/media/uploads/TickTock/pcbtop.jpg /media/uploads/TickTock/pcbbot.jpg

Once the PCB is populated, solder the LCDs to the PCB. CS0 connects to the right display and CS1 connects to the left. /media/uploads/TickTock/brddis.jpg

Update: The Zener diodes tended to fail after a few months so I am recommending removing them and replacing with a DC-DC converter. This will run cooler and waste less energy, too. To install, remove the left display panel to gain access to the Zener. From there, the Zener can be removed and it's pads used to connect to the DC-DC converter. I recommend setting the output voltage on the bench before installing since the trim pot is tricky to reach once installed. Set it to 7V. The input can be connected to the left pad previously occupied by the zener and the output can connect to the right. GND(-) can be connected to the bottom right pad on the 2x6 header below the flex cable connector. Make sure the GND wire lies flat so it doesn't interfere with the connection of the flex cable. /media/uploads/TickTock/dcdcinst2.jpg

Once soldered in place, the DC-DC converter can easily be mounted to the back wall with double sided tape above the battery holder. /media/uploads/TickTock/dcdcinst3.jpg

3) Testing

1)First step is to buzz out all connections from the LCDs to the pins in the main board
2)Next check the touch screen connections. On the main board, place an Ohm meter across X+ and X-. You should read 700 Ohms. Repeat for Y+ and Y-. Then test the resistance from X+ to Y+. With nothing touching the screens, it should read >100K Ohms and <1K when touching either screen.
3)When all connections are checked, solder in the mbed. Download and install the touch2 program http://mbed.org/users/TickTock/code/touch2/ to test the basic operation of the mbed and touch screens.
tips:
Touch screen is sensitive - excess flux on X+,X-,Y+,Y- connection on mbed can result in flakey operation
If touch is not working, double-check the LCD0_CS and LCD1_CS are not swapped. LCD0_CS must connect to the CS of the LCD that has X- & Y- connected to the mbed. LCD1_CS must connect to the CS of the LCD that has X+ & Y+ connected to the mbed.
4)Once touch2 works, it is time to connect to the OBD connector. I highly recommend double checking all connections from the OBD to the PCB with the cable in place before connecting to the Leaf. Buzz out all the pins in the OBS to make sure none are shorting to each other, Check that the 12V goes to the Zener (and nothing else) and the switched 12V to the resistor divider (and nothing else). Test the ground connection properly connects to ground and nothing else.
5)Once you are confident there are no shorts or wrong connections from the OBD connector, take a deep breath and plug it into your leaf. Touch2 program should come up and function. Unplug and install the latest CANary firmware. If you have the REV2.00 LCD boards, you will need to edit the precompile.h file in the TOUCH_TFTx2_w9341 library and set USE_ILI9341 to 1. Test all features before installing into the enclosure (gids, cellpair, menu system, logging) since installing and removing from the enclosure is a PITA.

/media/uploads/TickTock/pcbdone.jpg /media/uploads/TickTock/functioning.jpg

4) Enclosure

The 3D printer leaves a lot of powder behind - I used a strong spray of water to get it out of all the cracks. The enclosure comes with a rather rough finish. I recommend convincing yourself you like it, then simply lightly sand then paint before assembly. Sanding is very difficult - the nylon is very nicely fused and doesn't want to sand. I tried sandblasting and that didn't work either. I had some limited success with filler and then sanding, but only on the outside - it is too difficult to sand the face. /media/uploads/TickTock/enclosure.jpg

5) Final Assembly

Make sure you are well rested with lots of patience before attempting assembly. It is a puzzle figuring out how to get both displays and the PCB in place. Enclosure was too expensive for me to keep iterating to optimize for assembly. I ended up snipping the thin display posts shorter and using various tools to push the displays into place. Also, some USB connectors are taller than others. If you have one of the taller ones, you will have to deflect the back wall a bit while inserting the PCB (being careful not to bend the housing) to get it to it's opening in the back wall. Do use a screw in the provided post to secure the PCB as USB insertion will otherwise dislodge it.

I added an additional safety line which wraps around the center post to prevent the enclosure from becoming a projectile in the event of an accident. /media/uploads/TickTock/safety.jpg Installed: /media/uploads/TickTock/installed.jpg

Revisions of utility.cpp

Revision Date Message Actions
158:059abeb44ba1 2013-10-31 // Fixed bug in date/time sync to sync on all days of the month; // Added auto time sync enable/disable button to cofig2 screen; // Highlight data if changed in testScreen; File  Diff  Annotate
156:4e5d30535cf9 2013-10-24 // Changed efficency screen braking monitor to use actual motor amps instead of target regen signal; // Changed braking screen to use actual regen signal instead of target regen signal; File  Diff  Annotate
155:f31006516956 2013-10-19 // Added workaround to spkr and dled pwn not being independently controlled in hw; // Added ambient temperature to trip log; // Save Resr in history file so it doesn't reset to 75mOhms on CANary reset; // Fixed Reser formatting to %4.3f; File  Diff  Annotate
154:90ea16ca7475 2013-10-16 // Added mute button to upper right corner for quick access File  Diff  Annotate
153:e94cfe3c339c 2013-10-12 // Added current reversal tone; // Added MY2013 autoSync support (just time - no date) File  Diff  Annotate
152:a4d66901785d 2013-10-06 // Added clock sync with car clock option (MY2011,2012 only); // Fixed wrap bug in manual date update (january=00, not 01); File  Diff  Annotate
151:3047ebb3c9a8 2013-09-30 // added per_charge trip meter File  Diff  Annotate
150:ef46ce63345c 2013-09-27 // Removed air drag comp; // Added user message Id's to the config file; // Added copy of ehist.cny to USB on config save and load if present on firmware update File  Diff  Annotate
149:e9739523109f 2013-09-25 Compensated DTE with air drag of current ambient temperature. File  Diff  Annotate
148:6e3b9135fad2 2013-09-12 // No longer save config after firmware update; // Added config health check after read; // Added debugScreen; // Switched friction monitor to msgId:292 so MY2013 will work; // Added ambient to main display; // Added Resr to trip log File  Diff  Annotate
147:e0f1c84c62a6 2013-08-07 Changed CONFIG.TXT copy on thumbdrive to CONFIG.BAK to avoid unwanted restore. Also copy to thumbdrive happens when saveConfig is selected instead of on fw update.; File  Diff  Annotate
144:b0c9d30dd346 2013-08-06 added accessory volt read from battData; put a copy of the config.txt on the USB drive during firmware update; added current trip efficiency below 10 minute efficiency to dte display; File  Diff  Annotate
143:88b5155622a5 2013-08-05 added accessory volt read from battData; put a copy of the config.txt on the USB drive during firmware update; File  Diff  Annotate
142:c1a11d6f181c 2013-08-04 changed trip log back to just cp vales File  Diff  Annotate
141:cf13a632ddb5 2013-08-04 tweaked brakeMon sensitivity and threshold File  Diff  Annotate
140:ab3e94eb0227 2013-08-04 Added odometer to batt and trip log; Added mi/km detection from dash; Added audible brake monitor; File  Diff  Annotate
138:a2f5af85ed0d 2013-08-02 Fixed metric DTE formatting File  Diff  Annotate
137:70853cf5a30f 2013-07-28 Added update if screen touched on power; Fixed hang on immediate USB access File  Diff  Annotate
136:41a204105511 2013-07-27 Updated mainDisplay File  Diff  Annotate
135:89986950d501 2013-07-26 Hide buttons on health screen on powerdown; Turn off screen even if logging if car off and user idle; File  Diff  Annotate
134:ad243e4f1a17 2013-07-25 Added orange highlight if psi<32; Qualified max and min trip efficiency update with trips > 3 miles; Keep mbed asleep during charging (EVcan only) unless logging active; Added miles & kWh to trip log; File  Diff  Annotate
132:08748a67280a 2013-07-24 Added max and min DTE to main display. Put mbed to sleep during charging if not logging. File  Diff  Annotate
131:0d926c080a65 2013-07-24 Added Health splash screen on ignition on/off. Added copy of CONFIG.TXT from USB if present during firmware update. Added alt SOH. Tweaked graphics. File  Diff  Annotate
130:1a9d2a6d99ce 2013-07-22 Pulled last good metric rev into default branch File  Diff  Annotate
128:25314f339565 2013-07-21 Kills thumbdrives on contact! File  Diff  Annotate
127:27c739fd6d71 2013-07-21 Recovered from failed attempt to restore default File  Diff  Annotate
126:e0d039096891 2013-07-21 attempt to restore default; File  Diff  Annotate
125:f58b7ab2abee 2013-07-21 Re-centered efficiency screen File  Diff  Annotate
124:0d622967b764 2013-07-20 Added tire pressure from canbus File  Diff  Annotate
123:a8c0042df617 2013-07-19 First attempt to add tire pressure File  Diff  Annotate
122:138a40892a4c 2013-07-17 Updated display formatting. Temporarily dumping all 7bb messages to ascii log for exploration. File  Diff  Annotate
121:553faf139a20 2013-07-11 Added shunt identification to cpbars display File  Diff  Annotate
120:041edeec08f5 2013-07-08 Changed Resr algorithm to one requiring less computation. Ignore data for small delta_V. File  Diff  Annotate
119:0e2b641e98a2 2013-07-05 fixed bugs in health screen File  Diff  Annotate
118:02010b18efdc 2013-07-05 Added Resr tracking and health display; File  Diff  Annotate
117:49883c779a74 2013-07-04 Added delay to initial poll to give BMS time to measure; File  Diff  Annotate
116:5cd72bae7c12 2013-07-04 Attempting to move buffer dump to ISR; File  Diff  Annotate
115:549410af477d 2013-07-04 Added delay to powerup ping (apparently BMS needs some time). Made all logging enabled by default File  Diff  Annotate
114:3f8c59a8a2b9 2013-07-02 fixed bug in battery log files (pointing to wrong cellpair locations) File  Diff  Annotate
112:b41b35401eb6 2013-07-01 Fixed lockup bug when USB already present File  Diff  Annotate
111:d1559bb25c43 2013-06-30 Added USB insertion detect. Logging will start once usb drive is inserted. File  Diff  Annotate
110:ffddff3ad2f2 2013-06-30 Got battery and trip logs working. Fixed canlog to append (was overwriting previous data). File  Diff  Annotate
109:3e6f0e8fca0d 2013-06-30 Change filesystem library. Got logging and playback working. File  Diff  Annotate
108:29b5a760adc2 2013-06-30 Fixed temperature bug but USB logging is disabled File  Diff  Annotate
107:e9be732c1ad4 2013-06-29 Added trip meter File  Diff  Annotate
106:f016912a03db 2013-06-28 added logging indicator on main screen File  Diff  Annotate
104:5a19101aaac5 2013-06-28 Fixed 000 msgId logging bug File  Diff  Annotate
102:fd19f777a0b4 2013-06-20 Added Ah, SOH, and more precise temperature measurement. File  Diff  Annotate
100:63a7456fc972 2013-06-15 reset display when fw update fails File  Diff  Annotate
99:c05abf8e1cdc 2013-06-15 Merged and moved check for firmware.bin *before* deleting old *.bin. File  Diff  Annotate
98:9f8bab96edff 2013-06-10 Metric Initial Commit File  Diff  Annotate
97:a25940fd7b5b 2013-06-15 . File  Diff  Annotate
95:248b3c25a7df 2013-05-03 Stop auto-polling when asleep; added battery temp to main display File  Diff  Annotate
94:c3a14b3975d6 2013-05-03 Cleaned up dte miles remaining display (right justified and clear old values better) File  Diff  Annotate
93:c2402e8cd0e2 2013-05-01 Merged in tested logCan reentry fix File  Diff  Annotate
92:935adef49ea4 2013-04-22 Reverting to keep latest as last know *tested* revision. logCan interrupt fix work moved to CANaryTest fork. File  Diff  Annotate
91:33ab084a184f 2013-04-22 changed interrupt priorities (RTC,CAN,Ticker) File  Diff  Annotate
89:2263d349b484 2013-04-20 Moved headlight detection out of logCan. File  Diff  Annotate
88:45185a5f1c9b 2013-04-20 Made logCan reentry safe so logTS & logEven can be safely interrupted by logCan. File  Diff  Annotate
87:46ac3f2519d6 2013-04-19 Toggle Debug on Config Screen, Store all 5 Groups of Requested data. File  Diff  Annotate