Wiblocks --- NB2AS -- ATmega644P + DAC + RTC + uSD

NB2AS Microcontroller Board

The NB2AS is a physical computing development system that is compatible with the Arduino software environment (with the Sanguino add-ons). For system development a variety of peripheral modules are available. The NB2AS datasheet contains the specification, schematics and bill-of-materials.

The DAC and RTC libraries are released. The microSD library is functional but needs documentation. The microSD library has been tested with a Transcend 1GB, Sandisk 2GB and Sandisk 4GB HC card.

Features

NB2AS Pricing

Assembled boards are assembled to order and typically ship within one to two business days.

Part Number Description Price | Qty

NB2AS-KIT4 datasheet NB2AS-KIT2 w/o the DAC and reference 50.00USD |  1
50.00USD |  1

NB2AS-KIT2 datasheet NB2AS, TH Kit, USB Header, uSD components 60.00USD |  1
60.00USD |  1

NB2AS-KIT3 datasheet NB2AS, TH + SMD Kit 65.00USD |  1
65.00USD |  1

NB2AS datasheet NB2AS Assembled and Tested (USB Interface) 80.00USD |  1
80.00USD |  1

Accessories

The FTDI USB to Serial Cable TTL-232R-3V3 is required to program the NB2AS built with NB2A-KIT2. NB2AS-KIT3 amd NB2AS-KIT4 include the surface mount components to build the on-board USB interface.

Part Number Description Price | Qty

FTDI-TTL-232R-3V3 datasheet USB to RS232 (3.3V TTL) 20.00USD |  1
20.00USD |  1

NB2A-KIT4 Component List

Item Number Quantity Description

1 1 connector, battery, CR1220
2 6 capacitor, ceramic, 0.1uF, 10%, 50V, X7R
3 2 capacitor, ceramic, 20pF
4 2 capacitor, Nichicon UPW1E100MDD
5 1 capacitor, ceramic, 0.1uF, 16V, 0805

6 1 diode, 1N4148
7 1 diode, dual, On-Semi MBR1545CTG
8 1 LED, T1, Green
9 2 diode, BAT41
10 1 fuse, 0.5A 1812

11 1 header, RA, 17x2, 100mils
12 2 header, 3x1, 100mils
13 1 header, 6x1, 100mils
14 1 header, 3x2, 100mils
15 1 power jack, 2.1mm

16 1 inductor, 10uH, 10%
17 1 FET, P, -20V, 3.2A
18 1 resistor, 10K, 1/4W, 1%
19 1 resistor, 374 Ohm, 1/8W, 1%
20 2 resistor, 4.7K, 1/8W, 1%

21 1 resistor, 10K, 0805. 1%
22 3 resistor network, 47K, 1/8W, 1206x2 Concave
23 1 resistor, 47.5K, 0805, 1%
24 1 pushbutton
25 1 ATmega644P-20PU, 64K/4K/2K, 20MHz

26 1 voltage regulator, 3.3V, 800mA, TO-220
27 1 IC, RTC, DS1337+
28 1 Molex_502702-0891
29 1 crystal, 12MHz, 20pF, HC49US
30 1 crystal, 32.768KHz, 6pF, 2x6mm package

31 1 DIP Socket, 8 Pin, 300mil centers
32 1 DIP Socket, 40 Pin, 600mil centers
33 2 Shunt with handle
34 1 battery, coin cell, CR1220
35 1 wiblock_NB2AS-PCB

NB2AS-KIT2 Component List

Item Number Quantity Description

1 1 connector, battery, CR1220
2 7 capacitor, ceramic, 0.1uF, 10%, 50V, X7R
3 2 capacitor, ceramic, 20pF
4 2 capacitor, Nichicon UPW1E100MDD
5 1 capacitor, ceramic, 0.1uF, 16V, 0805

6 1 diode, 1N4148
7 1 diode, dual, On-Semi MBR1545CTG
8 1 LED, T1, Green
9 2 diode, BAT41
10 1 fuse, 0.5A 1812

11 1 header, RA, 17x2, 100mils
12 2 header, 3x1, 100mils
13 1 header, 6x1, 100mils
14 1 header, 3x2, 100mils
15 1 power jack, 2.1mm

16 1 inductor, 10uH, 10%
17 1 FET, P, -20V, 3.2A
18 1 resistor, 10K, 1/4W, 1%
19 1 resistor, 374 Ohm, 1/8W, 1%
20 1 resistor, 2.1K, 1/8W, 1%

21 2 resistor, 4.7K, 1/8W, 1%
22 1 resistor, 10K, 0805. 1%
23 3 resistor network, 47K, 1/8W, 1206x2 Concave
24 2 resistor, 47.5K, 0805, 1%
25 1 pushbutton

26 1 ATmega644P-20PU, 64K/4K/2K, 20MHz
27 1 voltage regulator, 3.3V, 800mA, TO-220
28 1 IC, DAC, TLV5618, 2ch, 12bit, DIP-8
29 1 IC, REF, 1.225V, 0.1%, TO-92
30 1 IC, RTC, DS1337+

31 1 Molex_502702-0891
32 1 crystal, 12MHz, 20pF, HC49US
33 1 crystal, 32.768KHz, 6pF, 2x6mm package
34 2 DIP Socket, 8 Pin, 300mil centers
35 1 DIP Socket, 40 Pin, 600mil centers

36 2 Shunt with handle
37 1 battery, coin cell, CR1220
38 1 wiblock_NB2AS-PCB

NB2A-KIT3 Component List

Item Number Quantity Description

1 1 connector, battery, CR1220
2 7 capacitor, ceramic, 0.1uF, 10%, 50V, X7R
3 2 capacitor, ceramic, 20pF
4 2 capacitor, Nichicon UPW1E100MDD
5 4 capacitor, ceramic, 0.1uF, 16V, 0805

6 1 diode, 1N4148
7 1 diode, dual, On-Semi MBR1545CTG
8 1 LED, T1, Green
9 2 diode, BAT41
10 1 fuse, 0.5A 1812

11 1 header, RA, 17x2, 100mils
12 2 header, 3x1, 100mils
13 1 header, 3x2, 100mils
14 1 power jack, 2.1mm
15 1 Molex_67503-1020

16 1 inductor, 10uH, 10%
17 1 FET, P, -20V, 3.2A
18 1 resistor, 10K, 1/4W, 1%
19 1 resistor, 374 Ohm, 1/8W, 1%
20 1 resistor, 2.1K, 1/8W, 1%

21 2 resistor, 4.7K, 1/8W, 1%
22 3 resistor, 10K, 0805. 1%
23 3 resistor network, 47K, 1/8W, 1206x2 Concave
24 2 resistor, 47.5K, 0805, 1%
25 1 resistor, 4.7K, 0805, 1%

26 1 pushbutton
27 1 ATmega644P-20PU, 64K/4K/2K, 20MHz
28 1 voltage regulator, 3.3V, 800mA, TO-220
29 1 FTDI_FT232RL
30 1 IC, DAC, TLV5618, 2ch, 12bit, DIP-8

31 1 IC, REF, 1.225V, 0.1%, TO-92
32 1 IC, RTC, DS1337+
33 1 Molex_502702-0891
34 1 TI_SN65220DBV
35 1 crystal, 12MHz, 20pF, HC49US

36 1 crystal, 32.768KHz, 6pF, 2x6mm package
37 2 DIP Socket, 8 Pin, 300mil centers
38 1 DIP Socket, 40 Pin, 600mil centers
39 2 Shunt with handle
40 1 battery, coin cell, CR1220

41 1 wiblock_NB2AS-PCB