Schmacksby/riddle_pcbThis PCB is part of the online riddle elektro-maschine.com.
Riddle pcb is an open-source printed circuit board by Schmacksby, from the Schmacksby/riddle_pcb repository on GitHub. It is a 4-layer board of 90 × 57 mm with 56 parts on 69 nets, routed with 351 tracks and 76 vias.
It is built around the ATMEGA328P-AU, CH340C and APDS-9960, with the AP130-33YG, ICM-20948 and PMEG2005EH among its other parts. Its parts include 18 capacitors, 14 resistors, 7 ICs, 2 diodes and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
This PCB is part of an semi-online riddle. This PCB is needed to solve the riddles shown on the website.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C9, C11, C12, C18, C19, C20 |
| 5 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C5, C6, C16, C17 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10, R11, R12, R13 |
| 4 | LOGO | LOGO | G***, G***, G***, G*** |
| 4 | SW_Push | Button_Switch_SMD:SW_SPST_PTS645 | A, B, C, D |
| 3 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C10, C15 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5, R6, R7 |
| 2 | 4k7 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R4 |
| 2 | 4u7 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2 |
| 1 | 0R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R15 |
| 1 | 22R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R14 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 1 | 470R | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2 |
| 1 | 4u7/16V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | AP130-33Y | Package_TO_SOT_SMD:SOT-89-3 | U2 |
| 1 | APDS-9960 | Sensor:Avago_APDS-9960 | U7 |
| 1 | ATmega328P-A | Package_QFP:TQFP-32_7x7mm_P0.8mm | U3 |
| 1 | BLUE | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | Bat_neg | Battery:BatteryClip_Keystone_54_D16-19mm | NEG |
| 1 | Bat_pos | Battery:BatteryClip_Keystone_54_D16-19mm | POS |
| 1 | CH340C | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | Display | Custom_Display:SSD1306 128x32px | DISPLAY |
| 1 | ICM-20948 | Sensor_Motion:InvenSense_QFN-24_3x3mm_P0.4mm | U8 |
| 1 | ICSP | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | PRG |
| 1 | MCP73831-2-OT | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | PMEG2005EH | Diode_SMD:D_SOD-123F | D2 |
| 1 | RESET_JMP | Button_Switch_SMD:SW_SPST_B3U-1000P-B | RST |
| 1 | Resonator 8MHz | Crystal:Resonator_SMD_Murata_CSTxExxV-3Pin_3.0x1.1mm_HandSoldering | Y1 |
| 1 | TMP36xS | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5 |
| 1 | USB_B_Mini | Connector_USB:USB_Mini-B_Wuerth_65100516121_Horizontal | J4 |
| 1 | dnp | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R16 |
It measures 90 × 57 mm and has 4 copper layers, 1.6 mm thick.
56 parts, built around the ATMEGA328P-AU, CH340C, APDS-9960 and AP130-33YG. 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 Schmacksby/riddle_pcb repository on GitHub, at the commit this page was made from: the board is Riddle_PCB.kicad_pcb and its schematic Riddle_PCB.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 Schmacksby before reusing the design.
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