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rigidus/rigidus.ru
Contacts: email: i.am.rigidus טּ gmail.com jabber: rigidus@jabber.ru

This repository aims to provide a basic program, schematic diagram, and PCB design for an eight by four (8x4) LED matrix with Arduino and SN74HC595 shift register IC
Led matrix 8x4 module is an open-source printed circuit board by jkga, from the jkga/led_matrix_8x4_module repository on GitHub, published under the MIT licence. It is a 2-layer board of 77.3 × 76.7 mm with 69 parts on 58 nets, routed with 418 tracks and 35 vias.
It is built around the 74HC595 and PN2222A. Its parts include 32 diodes, 16 resistors, 8 transistors, 4 capacitors and 4 connectors. It belongs with the lEDs and displays boards of this library.
This repository aims to provide a basic program, schematic diagram, and PCB design for an eight by four (8x4) LED matrix with Arduino and SN74HC595 shift register IC
| Module | Arduino | |
|---|---|---|
| Latch | L | 8 |
| Serial Data Input | D | 11 |
| Clock Input | C | 12 |
| Row 1 | 4 | 4 |
| Row 2 | 3 | 5 |
| Row 3 | 2 | 6 |
| Row 4 | 1 | 7 |
| Power (+) | + | 5v |
| Power (-) | - | GND |
| QTY | Reference | Value |
|---|---|---|
| 1 | C1 | 33uf |
| 1 | C2 | 0.1uf |
| 1 | C3 | 0.1uf |
| 32 | D1 - D32 | LED (Vfmin = 1.7v; Ifmax = 0.25mA) |
| 1 | J1 | 1x4 Female Connector |
| 1 | J2 | 1x4 Female Connector |
| 1 | J3 | 1x4 Female Connector |
| 1 | J4 | 2x8 DIP Socket |
| 8 | Q1 - Q8 | PN2222A BJT Transistor |
| 8 | 4.7k ohms | |
| 8 | 510 ohms | |
| 1 | U1 | SN74HC595N |
| 10 | Jumper Wires |
L.O.V.E - A Valentine's day message to everyone



| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | LED | LED_THT:LED_D5.0mm | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +16 |
| 8 | 4.7k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R3, R5, R7, R9, R11, R13, R15 |
| 8 | 510 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R2, R4, R6, R8, R10, R12, R14, R16 |
| 8 | PN2222A | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3, H4 |
| 2 | 0.1uf | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C2, C4 |
| 1 | 100uf | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 33uf | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C3 |
| 1 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U1 |
| 1 | Conn_01x02_Female | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Horizontal | J2 |
| 1 | Conn_01x04 | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Horizontal | J1 |
| 1 | Conn_01x04_Female | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Horizontal | J3 |
| 1 | DIP_SOCKET_02x08 | Package_DIP:DIP-16_W7.62mm_Socket | J4 |

rigidus/rigidus.ru
Contacts: email: i.am.rigidus טּ gmail.com jabber: rigidus@jabber.ru

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It measures 77.3 × 76.7 mm and has 2 copper layers, 1.6 mm thick.
69 parts, built around the 74HC595 and PN2222A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the jkga/led_matrix_8x4_module repository on GitHub, at the commit this page was made from: the board is kicad/led_matrix_8x4_module.kicad_pcb and its schematic kicad/led_matrix_8x4_module.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).