Board
About the Board
Board is an open source AVR/Arduino PCB design by ak1211, published on GitHub under the MIT license. It is a 2-layer board measuring 160 × 100 mm, with 118 components from 68 distinct parts.
Its main chip is the ATMEGA328P-P, from the AVR/Arduino family. Other key parts include the OPA2134P, PC817, NJU7223DL1, NDS9936 and FDS4935. By type, the board carries 50 resistors, 19 capacitors, 13 ICs, 10 connectors, 7 transistors and 7 diodes.
It belongs with the audio designs in this gallery.
From the project
Infra Red remote control amplifier
Main components on the Board
Board bill of materials (BOM)
118 components, 68 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATMEGA328P-P ATMEGA328-P | DIP-28__300 | IC1 |
| 2 | OPA2134P | DIP-8__300_ELL | IC2, IC3 |
| 2 | PC817 | DIP-4__300 | IC4, IC5 |
| 1 | NJU7223DL1 MINMAX_MAU106 | MAU106 | U1 |
| 1 | NDS9936 R78E5.0 | RECOM_R78E | U2 |
| 1 | FDS4935 NJU7223F33 | TO220_VERT123 | U3 |
| 1 | MCWI03_12D05 SO1602AWYB-UC-WB | SO1602 | U4 |
| 1 | LME49720 PL-IRM2161 | PL-IRM2161 | U5 |
| 1 | LME49720 TL082 | DIP-8__300_ELL | U6 |
| 1 | LM1972 PGA2311 | DIP-16__300_ELL | U7 |
| 1 | LME49600 LM2902N | DIP-14__300_ELL | U8 |
| 1 | 2SK2411 2SJ681 | TO220_VERTGDS | Q1 |
| 1 | 8MHZ 2N7000 | TO92DGS | Q2 |
| 1 | 8MHz | CERALOCK | Q3 |
| 2 | 2SJ681 | TO220_VERTGDS | Q4, Q7 |
| 2 | 2N7000 | TO92DGS | Q5, Q6 |
| 1 | PJ325 | PJ325 | J1 |
| 1 | CONN_20X2 | PIN_ARRAY_20X2 | P1 |
| 2 | CONN_13X2 | pin_array_13x2 | P3, P4 |
| 1 | CONN_6 | pin_array_3x2 | P5 |
Show 48 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CONN_01X04 CONN_20X2 | PIN_ARRAY_20X2 | P6 |
| 4 | CONN_2 | PIN_ARRAY_2X1 | P7, P8, P9, P10 |
| 1 | G5V2 | G5V-2 | RLY1 |
| 1 | EVE-VCGJL016B | EVEV | ROTENC1 |
| 1 | RESET_SW | SW_PUSH_SMALL | SW1 |
| 2 | 3.3V | DO-41 | ZD1, ZD2 |
| 2 | LED | LED-5MM | D1, D2 |
| 2 | DIODE | D4 | D3, D7 |
| 2 | 1N4148W1 DIODE | D4 | D4, D6 |
| 1 | 1N4148W1 DIODE | D3 | D5 |
| 5 | FILTER | CP4 | FB1, FB2, FB3, FB4, FB5 |
| 2 | 220U 220u | C1V8 | L1, L2 |
| 1 | 220U 100u | C1V5 | C1 |
| 1 | 47U 0.1u | C1 | C2 |
| 1 | 8200U 0.1u | C1 | C3 |
| 1 | 220u | C1V5 | C4 |
| 3 | 0.1u | C1 | C5, C6, C19 |
| 3 | 100u | C1V5 | C7, C10, C11 |
| 2 | 47u | C1V5 | C8, C9 |
| 2 | 1u | C1V5 | C12, C15 |
| 2 | 2.2u BP | C1V5 | C13, C14 |
| 3 | 8200u | C1V7H | C16, C17, C18 |
| 3 | 10k | R4 | R1, R30, R42 |
| 1 | 10K 10k | R4 | R2 |
| 1 | 33K 10 | R4 | R3 |
| 5 | 1k | R4 | R4, R13, R14, R15, R16 |
| 4 | 4.7k | R4 | R5, R9, R10, R28 |
| 1 | 10K 4.7k | R1 | R6 |
| 1 | 33K 10 | R5 | R7 |
| 1 | 4.7K 10k | R5 | R8 |
| 3 | 47k | R4 | R11, R12, R17 |
| 1 | 100K 100k | R4 | R18 |
| 7 | 100k | R4 | R19, R20, R21, R22, R33, R47, R49 |
| 3 | 10K 4.7k | R4 | R23, R24, R27 |
| 4 | 10K 100k | R4 | R25, R26, R43, R44 |
| 1 | 10K 10 | R4 | R29 |
| 1 | 220 | R4 | R31 |
| 1 | 10K 220 | R4 | R32 |
| 1 | 1.2K 47 | R4 | R34 |
| 2 | 10K 47 | R4 | R35, R37 |
| 1 | 47 | R4 | R36 |
| 2 | 4.7K 10k | R4 | R38, R39 |
| 1 | 330 100k | R4 | R40 |
| 1 | 330 10 | R4 | R41 |
| 1 | 10K 33k | R4 | R45 |
| 1 | 33K 100k | R4 | R46 |
| 1 | 10(2w) | R7 | R48 |
| 1 | 0 | R1 | R50 |
Board design files
The KiCad project lives in the ak1211/IR-control-amp repository on GitHub; these links point at the commit this page was built from.
Board: common questions
What microcontroller does the Board use?
The Board is built around the ATMEGA328P-P, from the AVR/Arduino family.
How big is the Board?
The Board measures 160 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Board?
118 components, from 68 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Board design files?
From the ak1211/IR-control-amp repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Board design in my own project?
Yes, under the terms of its MIT license, which ak1211 chose for the repository.
Can I test firmware for the Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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