D.I.Y Megasquirt

[xtorm]

juz wana know, does the better quality parts helps??

if it didnt, then mayb no point at all.....

change tose parts?ok will do...thx

im in the middle of deciding

 

[cipan_supercas]

Quality or precision parts are good for the timing/clock circuitry. Try using 1% resistors (metal film) for the clock circuit, No problem using the 1/8 watt. Refer to your circuit diagram to determine which are the clock circuit.

Those electrolytics caps are prone to acid leak when aging but tantalum does not. If it fails, than electrolytics will damaged your pcb and your MS are doomed.... If tantalum fails, than you only have a malfunction unit which can be fixed. No problem if you can change all those electrolytics every year.

Those parts that I recommended changes are for higer current transient which will further lenghtened your electronic project life service.

MAX232 and ST232 have different characteristics which require mods to the components. If you use MAX232 than you have to use 1uF 50v capacitors around it instead of 0.1uF. But it's easy just to change the chip if they have in stock.

 

[Stewart]

my 1st view of the website.. haven't finish read everything yet.... but it is superb..

cipan, is there anyway that we can replace the microprocessor(68HC908 processor) to some other kind of processor. because i have a embaded pc chip.. u think i can use it?

 

[pinkdotdesigns]

brudder cipan, send u an email bout megasquirt. waiting ur reply.

 

[cipan_supercas]

Hey smartguys, how's your project going on? The CNY is over... or am I mistaken that you guys meant CNY in 2020?

 

[H2Zero]

Hey smartguys, how's your project going on? The CNY is over... or am I mistaken that you guys meant CNY in 2020?

You got to love this man.... :_:

 

[xtorm]

2.8k put into fixing my car......

change engine and ecu.....basically broke!!! haih

 

[H2Zero]

2.8k put into fixing my car......

change engine and ecu.....basically broke!!! haih

thats cheap la . for engine and ECU....

anyway is there any advice for someone who is going to begin his Megasquirt build. This will be my 1st ever encounter with a solder gun, PCB and IC... :confused_smile:

 

[jinkl]

h2zero , errrm kinda nt tht simple
maybe u tryout some simple DIY kits first, and also learn up some electronics
some stuff in the MS package , if u spoil it , u have to ship it from states again

 

[H2Zero]

jinkl ... thanks for the concern. noted your advice...

 

[xtorm]

thats cheap la . for engine and ECU....

anyway is there any advice for someone who is going to begin his Megasquirt build. This will be my 1st ever encounter with a solder gun, PCB and IC... :confused_smile:

its alot for a low wage technician like me :(

but i was lucky, the engine comes with high cam.....duno whats else is in it, according to the halfcut seller, its a tarmac rally car b4. took the engine out from halfcut hehe.