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Gadget Freak Case 102: Rob's Watching His Truck's DietGadget Freak Case 102: Rob's Watching His Truck's Diet
DN Staff
May 14, 2007
3 Min Read
Robert Kwiatkowski designs and deploys data logging systems for Condition Based Maintenance on aircraft carriers. With gasoline prices soaring, he wanted to improve the fuel efficiency of his thirsty truck. As a first step, he's doing some data logging via the OBDII port using this simple interface, a laptop computer and Windmill, a data acquisition application. With post-processing via MS Excel, he can monitor mpg in real time and compare fuels, additives and driving patterns to optimize his mp$ (miles/dollar).
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Amt | Part Description | Allied Part # |
1 | 750 Ohm | 895-0881 |
2 | 2.7 k Ohm | 296-6320 |
5 | 4.7 k Ohm | 832-1393 |
3 | 10 k Ohm | 832-1118 |
1 | 47 k Ohm | 296-2182 |
1 | 100 k Ohm | 832-1110 |
1 | 0.01 uF | 507-0326 |
1 | 0.1 uF | 881-0478 |
1 | 0.47 uF | 613-0497 |
2 | 27 pF | 881-5122 |
3 | 1N4148 | 935-0242 |
2 | 2N3904 (NPN) | 431-0406 |
3 | 2N3906 (PNP) | 568-0293 |
1 | +5V regulator, 78L05ACP (T0-92) | 568-0965 |
1 | IC Socket, DIP8 | 900-0004 |
1 | 3.579545 Mhz crystal | 895-0675 |
1 | DB9RA/M connector | 720-6170 |
1 | DB25RA/F connector | 810-0091 |
1 | LED 5 mm, red | 679-9981 |
1 | DB25M to DB9F cable (1 ft) | 0088-1 |
1 | ELM 320 chip | |
1 | Laptop with Rs-232 port | |
1 | J1962M to DB9F Cable (OBDII interface) |
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