
ESP32 Data Acquisition Board
TheBigBoschi/ESP32-Data-Acquisition-Board-PCB
Custom PCB holding an ESP32, various sensor, a LoRa transmitter and the power management to run off a single lithium battery, cherged by solar power.

Queue Local Display – ATmega328PB
Queue Local Display ATmega328PB is an open-source printed circuit board by ByNS-KARACA, from the ByNS-KARACA/Queue-Local-Display-ATmega328PB repository on GitHub. It is a 2-layer board of 340 × 100 mm with 206 parts on 210 nets, routed with 1,407 tracks and 518 vias.
It is built around the ATMEGA328PB-AU, MAX485ED and HEF4094BT,653, with the SM412301N, ULN2003A and MMBT2222A among its other parts. Its parts include 103 resistors, 31 capacitors, 16 ICs, 14 diodes and 8 connectors. It belongs with the lEDs and displays and interfaces and adapters boards and the AVR (ATmega, ATtiny) boards of this library.
This directory contains the KiCad source files for the Queue Local Display hardware.
These files represent the editable hardware source of the project.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | 1.2K %1 | Resistor_SMD:R_0805_2012Metric | R10, R11, R12, R13, R14, R15, R16, R18, R19, R20, R21, R22, R23, R24, R26, R27 +26 |
| 22 | 2.7K %1 | Resistor_SMD:R_0805_2012Metric | R17, R25, R33, R41, R42, R43, R44, R45, R46, R47, R48, R49, R50, R51, R52, R53 +6 |
| 12 | 100nF | Capacitor_SMD:C_0603_1608Metric | C4, C6, C8, C15, C16, C18, C20, C22, C24, C26, C28, C30 |
| 9 | LED | LED_SMD:LED_1206_3216Metric | D5, D7, D8, D9, D10, D11, D12, D13, D14 |
| 8 | 10K | Resistor_SMD:R_0603_1608Metric | R69, R70, R71, R72, R75, R78, R81, R103 |
| 8 | 10uF | Capacitor_SMD:C_0805_2012Metric | C5, C17, C19, C21, C23, C25, C27, C29 |
| 6 | 4.7K | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5, R6, R7 |
| 6 | HEF4094BT,653 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U2, U5, U6, U7, U8, U9 |
| 6 | SM412301N | Display_7Segment:SA15-11xxx | U10, U11, U12, U13, U15, U16 |
| 5 | 1K | Resistor_SMD:R_0603_1608Metric | R73, R74, R77, R80, R102 |
| 5 | MMBT2222A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric | C7, C9, C12, C14 |
| 4 | 10K | Resistor_SMD:R_0805_2012Metric | R1, R60, R61, R68 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 4 | RJ45 | Connector_RJ:RJ45_Amphenol_54602-x08_Horizontal | J2, J4, J7, J8 |
| 3 | 220 | Resistor_SMD:R_0603_1608Metric | R76, R79, R82 |
| 3 | 33 | Resistor_SMD:R_0805_2012Metric | R65, R66, R67 |
| 3 | 470 | Resistor_SMD:R_0805_2012Metric | R99, R100, R101 |
| 2 | 10 | Resistor_SMD:R_0805_2012Metric | R62, R63 |
| 2 | 18pF, C0G/NP0 | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 1K | Resistor_SMD:R_0805_2012Metric | R8, R9 |
| 2 | 220 | Resistor_SMD:R_0805_2012Metric | R58, R59 |
| 2 | 22uF/25V, X7R | Capacitor_SMD:C_1206_3216Metric | C10, C11 |
| 2 | FJ11001AH | Display_7Segment:7SegmentLED_LTS6760_LTS6780 | AFF1, AFF2 |
| 1 | 10uF/35V, X7R | Capacitor_SMD:C_1206_3216Metric | C13 |
| 1 | 10uH | Inductor_SMD:L_0603_1608Metric | L1 |
| 1 | 120 | Resistor_SMD:R_0805_2012Metric | R64 |
| 1 | 16Mhz, 12pF | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 4.7uH 3A 5*5mm , YNR5040-4R7M | Inductor_SMD:L_Chilisin_BWVS00505040 | L2 |
| 1 | 47uF/16V | Capacitor_SMD:CP_Elec_5x5.7 | C32 |
| 1 | 47uF/35V | Capacitor_SMD:CP_Elec_6.3x5.4 | C3 |
| 1 | AP63205WU-7 | Package_TO_SOT_SMD:TSOT-23-6 | U4 |
| 1 | ATmega328PB-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U1 |
| 1 | AVR-ISP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | DOWN | Button_Switch_THT:SW_PUSH_6mm_H13mm | SW3 |
| 1 | HC-12 | HC-12:MA05-1 | M1 |
| 1 | HC-12_SET | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP4 |
| 1 | HC-12_TXD | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP3 |
| 1 | HX-12_RXD | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP2 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | LED_BAGR | LED_THT:LED_D5.0mm-4_RGB_Wide_Pins | D6 |
| 1 | M7F | Diode_SMD:D_SMA | D4 |
| 1 | MAX485ED | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U14 |
| 1 | NULL_PIN | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | RED_LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | SET | Button_Switch_THT:SW_PUSH_6mm_H13mm | SW4 |
| 1 | SM712_SOT23 | Package_TO_SOT_SMD:SOT-23 | D3 |
| 1 | SS34 | Diode_SMD:D_SMA | D2 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H13mm | SW1 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1 |
| 1 | UART-SERIAL | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | ULN2003A | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | UP | Button_Switch_THT:SW_PUSH_6mm_H13mm | SW2 |
The 197 most common of 206 parts.

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SimulatedFlow/kicad-board-2026-07-16-bluepill-smartnode-rs485
STM32 Bluepill SmartNode - RS485 bus node carrier with 2 relays for Modbus / field bus setups. Hand-solderable THT, bare PCB. KiCad source files.
It measures 340 × 100 mm and has 2 copper layers, 1.6 mm thick.
206 parts, built around the ATMEGA328PB-AU, MAX485ED, HEF4094BT,653 and SM412301N. 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 ByNS-KARACA/Queue-Local-Display-ATmega328PB repository on GitHub, at the commit this page was made from: the board is Hardware/KiCad/Queue_Local_Display_ATmega328PB.kicad_pcb and its schematic Hardware/KiCad/Queue_Local_Display_ATmega328PB.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask ByNS-KARACA before reusing the design.