Author: John Martin
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Purplemeanie Site Theme Update
Post Views: 575 After 3 years of using one of WordPress’ older themes, I thought I’d give a newer theme a whirl. From today I’ve switch to the Twenty Twenty theme which is much more mobile friendly and has an integrated search function. Search Probably the biggest win from this update is the inclusion of…
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Build A Caterham 420R in 30 Minutes – YouTube Video
YouTube timelapse post condensing the Caterham 420R kit build into a 30-minute video, with the build archive and transcript context.
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Some People Must Be Watching – Site Stats 60k Views
Post Views: 569 As we approach 3 years since out kit arrived I thought it would be interesting to share some stats on this website. I created the site for two reasons. Firstly, it was to give something back. I’d looked at many build blogs and learnt so much from them. And I wanted to…
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Softbits for Sevens Boot Cover & G-clamp Hack
Post Views: 1,394 Note from Future John: The following post is a better way of doing this… Well, one thing led to another! So… for a while now, like many, I’d ditched the Caterham full-hood and have been using the Softbits for Sevens Half Hood (https://www.softbitsshop.co.uk/the-half-hood-8-c.asp). The half-hood is great, perhaps not as water tight…
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Lowflying Article – If Only Caterhams Could Talk, June/July 2020
Background post for the Lowflying article that adapted the Caterham ECU diagnostics work into a broader explanation of CAN bus and MBE diagnostic data.
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Driving Clifton Suspension Bridge – YouTube Video
Post Views: 1,012 This is a quicky… The weather was good and we were coming out of lockdown, so decided to get the car out for its first small run of the year. The Video I took a much longer run to get fuel and out from Bristol to Leigh Woods, Failand and then back…
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Lowflying Article – Nervous Novices, April 2020
Post Views: 515 It was Brian’s fault! The local Bristol and Bath AR (Area Representative), Brian Hall had suggested my name to the Lotus7.club track-day co-ordinator Simon Maitland. Simon was looking for someone to do a piece in Lowflying (the Lotus7.club monthly magazine) about how good the club’s novice track-days are. Brian knew I didn’t…
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ECU Diagnostics – part 14 : Software Framework mbe.py
Introduces the Python mbe.py framework for sending requests to the Caterham MBE 9A4 ECU and formatting diagnostic responses into readable values.
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ECU Diagnostics – part 13.3 : MBE-ISOTP
Describes the MBE ISO-TP style protocol used by Easimap to request data from the Caterham ECU and turn the responses into useful diagnostics.
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ECU Diagnostics – part 13.2 : OBD-II
Summarises what standard OBD-II services and PID data the Caterham MBE 9A4 ECU supports and how that data appears on the CAN bus.