nanoPad - MSP430G target board

[GeekDoc 226]

Very nice! I kind of want some. Not sure what I'd do with them, but they'd be handy to have for when I find out!

[RobG 1,892]

I will put together another board for the store, one that will have 4 nanoPads on it. If you need one right away, I have few that I can spare, just PM me.

 

Here's the completed power daughter board. Unfortunately, the board doesn't work. I don't believe it's a design/board issue, most likely bad part. Will assemble another one tomorrow and see.

 

UPDATE: Found the problem, power daughter board works as expected.

I guess beer and SMD do not mix, especially after 11pm

 

 

You can also attach CR2032 battery holder

 

[bluehash 1,581]

Ha! Even the coin-cell connector is bigger than the board.

[SugarAddict 227]

Want... nano, power, battery, rs232... You can just order a set of 10 of that board layout to my new address and I'll paypal you, lol :ugeek:

[RobG 1,892]

RS232 was just a filler on that board, should I keep it? I was going to replace it with more nanoPads. Also, I was thinking of using 2-3 different nP designs, the latest one and some of the early ones, like the one with the switch.

[zwitt 0]

No possibility ?

[zwitt 0]

incorrectly typed sorry

[SugarAddict 227]

Can you post the values for all the boards items? (And do they require polarized caps or can I use MLCC's?) Thanks for the boards, btw! I've got a few coming that I'll drop your way

[SugarAddict 227]

bump for bom?

[RobG 1,892]

Sorry, totally forgot about this one. I will provide BOM tomorrow, on my way from FL right now.

[SugarAddict 227]

kk Your package is expected delivery on Saturday btw!

[RobG 1,892]

For those who are interested, I am working on a new nP board which will be available for sale.

It will include:

Two MSP430 boards,

DC/DC step down board,

battery board,

TLC5916/5917/59208F board (constant current LED sink driver, I2C LED driver)

ULN2803/TLC59210/59211/59212/59213 board (high current darlington, sink driver with latch, source driver with latch)

 

Suggestions?

 

 

 

Here's the BOM:

MSP430 board

IC1 - MSP430G2X53PW20 (or MSP430G2X53PW14)

IC2 - TPS77033 SOT23-DBV

XTAL - 32 kHz xtal

LED1, LED2, LED3 - chip LEDs 0805

R1,R2 - 0 ohm 0603 (jumper)

R3 - 47k 0603

R4,R5,R6 - 220 0603 (LED specific)

C1 - 1u-10u/6.3V case A

C2 - 1u-10u/6.3V-10V (depending on Vin) case A

C3 - 1n 0603

C4 - 0.1 0603

 

DC/DC board

IC4 - TPS62050/TPS62051/TPS62056(fixed) MSOP10-DGS

L1 - 10uH-22uH, 1A+, 4.5mm x 4.5mm max

C10 - 10u/6.3V-16V (depending on Vin) case B/3528

C11 - 22u/6.3V case B/3528

C12 - 6.8p 0603

R7 - 560k 0603 (3.3V FB divider)

R8 - 100k 0603 (3.3V FB divider, for 3.6V, use 560k/91k or 620k/100k)

R11 - 100k 0603 (LBI divider, optional)

R12 - 120k-150k 0603 (LBI divider, optional)

R9 - 1M 0603 (LBO pull-up, optional)

R10 - 0ohm 0603 (LBO GND jumper, optional)

 

RS232 board (my original nanoPad board)

IC is MAX3232

All caps are 1u/16V

[RobG 1,892]

New boards are in, will send them to 43oh store once tested.

 

Each board includes:

two MSP430 boards,

DC/DC step down board,

Dual power transistor board (SOT-223,)

TLC5916/5917/59208F board (constant current LED sink driver, I2C LED driver,)

ULN2803/TLC59210/59211/59212/59213 board (high current darlington, sink driver with latch, source driver with latch)

 

[bluehash 1,581]

Nice use of space with the ULNs.

[cubeberg 540]

One thought - It'd be interesting to see something like this turned into an eTextile board - something like the LilyPad. I integrated some AVRs into costumes for my kids last year and it would be awesome to use an MSP430 instead.