Mega Controller
About the Mega Controller PCB
Mega Controller is an open source AVR/Arduino PCB design by prasad73, published on GitHub. It is a 2-layer board measuring 285 × 174.6 mm, with 113 components from 32 distinct parts.
Its main chip is the Arduino_Mega2560_Shield, from the AVR/Arduino family. Other key parts include the ULN2803A and TLP291-4. By type, the board carries 43 resistors, 39 connectors, 16 ICs, 7 jumpers, 4 diodes and 1 transistor.
From the project
food kiosk for restaurants/food retail chains
Main components on the Mega Controller
Mega Controller bill of materials (BOM)
113 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | ULN2803A | SO18L | U1, U2, U10 |
| 13 | TLP291-4 | SOIC-16_4.55x10.3mm_P1.27mm | U3, U4, U5, U6, U7, U8, U9, U11 +5 |
| 1 | BC337/ P2N2222A | TO-92_Inline | Q1 |
| 6 | Conn_01x08_Female | PinHeader_1x08_P1.27mm_Vertical | J1, J2, J3, J4, J5, J6 |
| 1 | Conn_01x05_Male | JST_XA_B05B-XASK-1_1x05_P2.50mm_Vertical | J7 |
| 1 | Conn_01x02_Female | PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | Screw_Terminal_01x06 | TerminalBlock_Phoenix_MKDS-1,5-6-5.08_1x06_P5.08mm_Horizontal | J9 |
| 1 | Conn_01x06_Female | PinHeader_1x06_P2.54mm_Vertical | J10 |
| 10 | Conn_01x04_Male | JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J11, J16, J24, J25, J32, J33, J34, J35 +2 |
| 1 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J12 |
| 6 | Conn_01x08_Male | JST_XH_B8B-XH-A_1x08_P2.50mm_Vertical | J13, J14, J15, J19, J22, J23 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J17 |
| 7 | Screw_Terminal_01x08 | TerminalBlock_Phoenix_MKDS-1,5-8_1x08_P5.00mm_Horizontal | J18, J20, J21, J27, J29, J30, J31 |
| 1 | Conn_01x03_Male | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J26 |
| 1 | Conn_01x02_Female | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J28 |
| 1 | Conn_01x06_Female | JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J38 |
| 1 | Conn_01x10_Female | JST_XH_B10B-XH-A_1x10_P2.50mm_Vertical | J39 |
| 1 | Buzzer | Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Jumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 2 | Jumper_2_Bridged | PinHeader_1x02_P2.54mm_Vertical | JP2, JP5 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Jumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged2Bar_Pad1.0x1.5mm | JP3 |
| 3 | Jumper_2_Open | PinHeader_1x02_P2.54mm_Vertical | JP4, JP6, JP7 |
| 1 | BOB-09056 | XDCR_BOB-09056 | TB1 |
| 1 | Arduino_Mega2560_Shield | Arduino_Mega2560_Shield | XA1 |
| 4 | LED | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1, D2, D3, D4 |
| 28 | 2.2k | R_Axial_DIN0411_L9.9mm_D3.6mm_P20.32mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 +20 |
| 2 | R_US | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R17, R18 |
| 3 | 10k | R_Array_SIP9 | RN1, RN2, RN3 |
| 3 | 1k | R_Array_SIP9 | RN4, RN5, RN6 |
| 1 | 4.7K/1k | R_Array_SIP9 | RN7 |
| 3 | R_Network08 | R_Array_SIP9 | RN8, RN9, RN10 |
| 3 | 4.7k/10k | R_Array_SIP9 | RN11, RN12, RN13 |
Mega Controller design files
The KiCad project lives in the prasad73/foodkiosk repository on GitHub; these links point at the commit this page was built from.
Mega Controller: common questions
What microcontroller does the Mega Controller use?
The Mega Controller is built around the Arduino_Mega2560_Shield, from the AVR/Arduino family.
How big is the Mega Controller PCB?
The Mega Controller measures 285 × 174.6 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mega Controller?
113 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the Mega Controller design files?
From the prasad73/foodkiosk repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Mega Controller design in my own project?
The repository has no license, so all rights stay with prasad73. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Mega Controller 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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