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About eriks4

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  • Birthday 28/10/1967

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    Lotus Esprit S4

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  1. Seems like a fun idea to add a virtual dash mode to Espritmon. Will look into this. Erik
  2. Hi Bob, I will recheck, but from what I remember there is always a byte between the stored BLM values, so the 0x0018 was intentional, not a typo. I first need to find my original source of information. Erik
  3. In later versions of Espritmon I have added the capability to save the first 1 KB of RAM to disk in the file espritram.bin. This is done when you press the v key. In this file the whole table is available. The contents of BLM cell 0 is at location 0x0016, cell 1 at 0x0018 etc. Good luck, Erik
  4. Hi Robin, I can upload some files that I recorded with my S4. Just send me a PM with an email address and I will upload them using wetransfer. Kind regards, Erik
  5. RLTC = Rich Lean Transition Counter The numeric value at the top of the RPM plot indicator is the (computed) ratio of RPM/speed with speed in km/h. This ratio is used to estimate the gear. Enjoy, Erik
  6. Paul, A 1228708 was used for many different cars. Are you certain you got one with an Esprit EPROM and MEMCAL? If so, are you running the same version of the software as in your other ECU or a different one? Erik
  7. Vince, I hope with the info about the timing you get your software to work. Please not that the Arduino Due I used does not use any of the standard AVR processors but an ARM processor. I think that if I would write the software directly in AVR assembly language it would run fast enough. However, I wrote it in the Arduino environment and when running it on an Arduino with an AVR processor (the Arduino Mega) I was loosing data. The Due is faster and works ok. So the binary is only for the Arduino Due, it will not run on other Arduinos. You mention that you made an ECU simulator. For the tes
  8. This is an overview of the components needed to build the logger. In my Esprit I have a D15 female to ALDL connector, hence the 15 pin male in the proto. The green LED blinks each time mode1 data is transferred, the green one for any ALDL data. This helps to verify whether communication is ok and whether actual mode1 data is received. The RTC module is used to obtain time and date (for the logfile name). The software for the Arduino DUE is in the logger.bin file. For the DIY people, this is all you need to build one yourself. Enjoy! logger.bin
  9. Just for fun I recently used an Arduino Due to create a solid state mode 1 ALDL recorder. It interogates the ECM like Espritmon, Freescan and the Tech 1 tool do and it stores the data as a .CSV file on an SD card. The data can be read and plotted using Espritmon. Building the recorder yourself is not very difficult and in fact easier than an ALDL-serial interface since the Arduino already has TTL level instead of the +-12V. Hardware comprises Arduino DUE, real-time clock module, SD card shield, one resistor and 1 diode. Will post more info soon.
  10. Espritmon works on Windows 7 and 8. I haven't tested it on Windows 10 yet, but there is no reason why it would not work. The only potential issue is that most computers no longer have a real RS232 port (which you typically use to connect a serial to ALDL interface). Many of the available USB to serial interfaces only support the standard baud rates, i.e. 2400, 4800, 9600, 19k2 etc. and not the 8192 bits/sec needed by the Esprit ALDL. So if you have a DIY RS232 to ALDL you may run into an issue with a USB to RS232 cable. For Windows 7 there is a registry hack for a particular chipset used in ma
  11. you can use Espritmon to save the contents of the PROM to file and do a comparison.
  12. Hoi Freek,

    Hoop dat het goed met je gaat, en met de Esprit. Had weer eens wat tijd om te knutselen en heb een ander soort ALDL interface gebouwd. Een Arduino die met een comport (die al TTL is) met de ALDL praat en lokaal de hele tijd mode 1 requests stuurt. Het resultaat (de 68 mode1 bytes) stuurt de Arduino vervolgens via bluetooth naar een virtuele comport (nu op 38400 baud). Espritmon hoefde ik verder niet aan te passen, gewoon de bluetooth comport als input zetten en de binnenkomende data wordt geparsed. Als ik wat meer tijd heb ga ik het Arduino deel uitbreiden dat ie ook requests van de PC kant voor mode 2 en 4 etc. accepteert. 



    1. fjmuurling


      Hoi Erik,

      Met mij gaat alles goed maar erg druk, hopelijk gaat het met jou ook goed.

      Het is alweer een tijdje geleden dat we elkaar gesproken hebben. Mijn Lotus staat nog steeds op blokken door allerlei oorzaken maar ik heb de draad weer opgepakt en er zit weer progressie in.

      Ik ben eindelijk ook weer eens bezig met de ECU en wel om een er een schema van te maken.

      Je arduino project klinkt zeer interessant, ik wil er graag meer over horen als dat kan.

      Tot spoedig horens,





  13. and updated the espritmon archive on the website to include the DEU.cfg file
  14. and this is the equation used in Espritmon (with n the 8 bit value from the mode 1 stream) com_map=n*2.0/255.0+0.08;
  15. In the zip archive a file is missing. Didn't notice it before. It is easy to fix. Go to the Espritmon CFG directory, Create a file with the name DEU.CFG Put the following contents in this file: DEU=256 USE_NET=0 USE_DINPUT=1 MOUSE_ACTIVE=1 MOUSE_TIMER=2000 DUALMODE=0 Save the file and rerun Espritmon. Erik
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