The Bud Toaster - (currently: Model 14, version 3)
- Thread starter Hippie Dickie
- Start date
.asm is what C code gets turned into by the compiler. All computer languages are equivalent, but .asm can be the more efficient in use of program space. And with only 2k words of program memory, you need to be efficient.
Easily converted? Sure, but why bother? Just learn the assembly language for the PIC -- there's only 35 instructions. It makes a lot more sense then C.
i like to use macros to write algorithms in a more English-like form. So lines of code that don't look like PIC instructions are macros - found in the Macro.asm file.
C also has macros. Very powerful abstraction technique.
my code is very heavily commented -- 43 pages of text for 1000 words of program -- i can be wordy, in case you hadn't noticed. i can touch type 100 words per minure or so, pretty much stream of consciousness output -- and it doesn't really feel like i'm in verbal mode. Makes it hard when the phone rings -- i can't do much more than just grunt at the caller. But if i'm in verbal mode, i just can't shut the fuck up.
Easily converted? Sure, but why bother? Just learn the assembly language for the PIC -- there's only 35 instructions. It makes a lot more sense then C.
i like to use macros to write algorithms in a more English-like form. So lines of code that don't look like PIC instructions are macros - found in the Macro.asm file.
C also has macros. Very powerful abstraction technique.
my code is very heavily commented -- 43 pages of text for 1000 words of program -- i can be wordy, in case you hadn't noticed. i can touch type 100 words per minure or so, pretty much stream of consciousness output -- and it doesn't really feel like i'm in verbal mode. Makes it hard when the phone rings -- i can't do much more than just grunt at the caller. But if i'm in verbal mode, i just can't shut the fuck up.
budballer
Well-Known Member
Do you think there's a way to upload that code into one of these arduino nano boards? Would the led's, buttons, and thermocouple work properly you think?
http://arduino.cc/en/Main/Hardware
http://arduino.cc/en/Main/Hardware
@budballer - i don't know anything about the arduino processor, but if it uses the same instruction set as the PIC, there would be copyright/patent violation. So, no, can't do that. Maybe conversion to the arduino instruction set is simple, i simply don't know. And you'd have to verify the i/o ports are the same, that there is an A-to-D on one of the pins to read the buttons, etc. Exercise left to the reader.
Is the desire to switch to arduino based on price? By the way, the PIC costs $1.20 in single quantities.
@Egzoset - doing a USB controlled vaporizer sounds like a nice project for you. i have no idea how you're going to get the thermocouple readings out to the PC over USB. i also don't know why you would want to even do that. A PC costs a lot more than $1.20 USD.
@elmomuzz - the heater coil is a resistor of 0.5 ohms. According to Ohm's law, e=i*r, or i= e/r, so i (current in amps) = e (voltage) / r (resistance), so i = 20 / .5 = 40 amps. That's the current draw by the coil. The current flow is chopped by the PWM (pulse width modulator) 250 times per second. So, the AVERAGE current flow is much less than 40 amps, but in each 1/250th of a second when the PWM is "on", the coil is sucking 40 amps (with 20 vDC input).
Is the desire to switch to arduino based on price? By the way, the PIC costs $1.20 in single quantities.
@Egzoset - doing a USB controlled vaporizer sounds like a nice project for you. i have no idea how you're going to get the thermocouple readings out to the PC over USB. i also don't know why you would want to even do that. A PC costs a lot more than $1.20 USD.
@elmomuzz - the heater coil is a resistor of 0.5 ohms. According to Ohm's law, e=i*r, or i= e/r, so i (current in amps) = e (voltage) / r (resistance), so i = 20 / .5 = 40 amps. That's the current draw by the coil. The current flow is chopped by the PWM (pulse width modulator) 250 times per second. So, the AVERAGE current flow is much less than 40 amps, but in each 1/250th of a second when the PWM is "on", the coil is sucking 40 amps (with 20 vDC input).
Egzoset
Banned
Don't worry too much about the hardware Hippie Dickie, chances are i'm not the one who will solve such problems!
Anyway, since you ask, i guess the USB signal can be translated to one of the old fashion serial standards and then serial to parallel conversion becomes an option (and hence there would be enough lines for my own pupose). I'm thinking why not just use the parallel port of a vintage PC, actually (i have plenty of those)... But yet, that wouldn't lead to appropriate discussions for the present thread. Sorry.
Euh... Now that i think of it i might prefer going BlueTooth, to be honest!
Anyway, since you ask, i guess the USB signal can be translated to one of the old fashion serial standards and then serial to parallel conversion becomes an option (and hence there would be enough lines for my own pupose). I'm thinking why not just use the parallel port of a vintage PC, actually (i have plenty of those)... But yet, that wouldn't lead to appropriate discussions for the present thread. Sorry.
Euh... Now that i think of it i might prefer going BlueTooth, to be honest!
i buy everything online at various internet web stores ... search and you shall find. That's what i did ... that's my value-add and why the Bud Toaster from me costs $350 or $500 with batteries.
Egzoset
Banned
Once i fell on some PCB Etching service, similar to this:
http://k-etch.weebly.com/index.html
http://www.eidusa.com/Electronics_PCB.htm
http://k-etch.weebly.com/index.html
http://www.eidusa.com/Electronics_PCB.htm
There you go!
i made the first dozen printed circuit boards using a kit from Radio Shack and using a laser printer and ironing the pattern onto the circuit boards. Drill and etch and you have a pcb. Now that i verified my pattern is correct (except for placement of a pad or two), it's only factory made for me.
Next step will be getting them stuffed with components. They can even program the PIC.
i made the first dozen printed circuit boards using a kit from Radio Shack and using a laser printer and ironing the pattern onto the circuit boards. Drill and etch and you have a pcb. Now that i verified my pattern is correct (except for placement of a pad or two), it's only factory made for me.
Next step will be getting them stuffed with components. They can even program the PIC.
you have a reflow oven to do two-sided surface mount??
Actually, a Bud Toaster could control the oven to produce the temperature profile required.
Actually, a Bud Toaster could control the oven to produce the temperature profile required.
Definitely. That's what i use. But i wouldn't outsource to that technology ... it would have to be robotic pick and place, and then automated oven soldering.
Sorry, beta testers already selected.
No. Q1 (vReg) is now 4.5v. Q2 is different. Don't need D1 (built into Q2). Surface mount - don't need S1. Q3, Q4, and Q5 are different. R1, R2, R3 are different. That list is way out of date.
Basically, throw out that list and go by the schematic -- which is up to date. i'll update the parts list some day.
Parts List for Model 14 version 1
Item Manufacturer ID
12F683 579-PIC12F683-E/SN
LE45AB 497-1530-1-ND
MAX6675 700-MAX6675ISA
MOSFET 512-FDB8832
15 Ohm Resistor 660-RK73H1JTTD15R0F
220 Ohm Resistor 660-RK73H1JTTD2200F
1K Ohm Resistor 660-RK73H1JTTD1001F
2K Ohm Resistor 660-RK73H1JTTD2001F
3.9K Ohm Resistor 660-RK73H1JTTD3901F
10uf Capacitor 399-4925-1-ND
0.1uf Capacitor 80-C0603C104J3R
Red LED APTD3216SRCPRV
Green LED APTD3216CGCK
Blue LED APTD3216PBC/A
SPST Switch 101-0264-EV
K-type Thermocouple EW-08419-02
Digital Thermometer custom China part
Battery LR44
Nichrome-80 16ga
PTFE 28awg .013"
PCB
A123Systems ANR26650M1
Charger (6A) CH-LFP32V6A
Deans Male Plug L5HGL912
Deans Female Socket L5KX3806
Deans 16ga wire LXWUR7
Wire mesh sleeve
1/8" dia x 2" extruded acrylic rod
Dip-It
Tweezers
Toothpicks
Wood Disc
Wood Block
Case
Borosilicate Tube 15mm x 38mm custom India part
Borosilicate Vial 12mm x 35mm
Borosilicate Tube 12mm x 100mm
solder
flux
Sorry for the formatting ... FC is throwing away tabs.
Item Manufacturer ID
12F683 579-PIC12F683-E/SN
LE45AB 497-1530-1-ND
MAX6675 700-MAX6675ISA
MOSFET 512-FDB8832
15 Ohm Resistor 660-RK73H1JTTD15R0F
220 Ohm Resistor 660-RK73H1JTTD2200F
1K Ohm Resistor 660-RK73H1JTTD1001F
2K Ohm Resistor 660-RK73H1JTTD2001F
3.9K Ohm Resistor 660-RK73H1JTTD3901F
10uf Capacitor 399-4925-1-ND
0.1uf Capacitor 80-C0603C104J3R
Red LED APTD3216SRCPRV
Green LED APTD3216CGCK
Blue LED APTD3216PBC/A
SPST Switch 101-0264-EV
K-type Thermocouple EW-08419-02
Digital Thermometer custom China part
Battery LR44
Nichrome-80 16ga
PTFE 28awg .013"
PCB
A123Systems ANR26650M1
Charger (6A) CH-LFP32V6A
Deans Male Plug L5HGL912
Deans Female Socket L5KX3806
Deans 16ga wire LXWUR7
Wire mesh sleeve
1/8" dia x 2" extruded acrylic rod
Dip-It
Tweezers
Toothpicks
Wood Disc
Wood Block
Case
Borosilicate Tube 15mm x 38mm custom India part
Borosilicate Vial 12mm x 35mm
Borosilicate Tube 12mm x 100mm
solder
flux
Sorry for the formatting ... FC is throwing away tabs.
exercise left to the reader ... (you're doing it wrong).
edit: Okay, it appears the FDB8832 is now obsolete, being replaced by FDB8832_F085, which is not yet available. Good thing i got a bunch last order.
When i need to reup my supply i'll update the parts list with whatever i find that has the same performance specifications at the time i order.
edit: Okay, it appears the FDB8832 is now obsolete, being replaced by FDB8832_F085, which is not yet available. Good thing i got a bunch last order.
When i need to reup my supply i'll update the parts list with whatever i find that has the same performance specifications at the time i order.