Adafruit Circuit Playground Express
About the Adafruit Circuit Playground Express PCB
Adafruit Circuit Playground Express is an open source Microchip SAM PCB design by hulkco, published on GitHub. It is a board measuring 50.8 × 50.6 mm, with 78 components from 51 distinct parts.
Its main chip is the ATSAMD21G18MU, from the Microchip SAM family. Other key parts include the APX803, PAM8301, LIS3DH, AP2112-3.3 and MCP73831T-2ACI/OT. By type, the board carries 16 ICs, 11 LEDs, 10 resistors, 9 capacitors, 5 diodes and 3 test points.
It belongs with the wearables designs in this gallery.
From the project
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Main components on the Adafruit Circuit Playground Express
Adafruit Circuit Playground Express bill of materials (BOM)
78 components, 51 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | APX803 MIC_PDM | SPK0415HM4H | IC1 |
| 1 | PAM8301 | SOT23-6 | IC2 |
| 1 | LIS3DH | LGA16_3X3MM | IC4 |
| 1 | AP2112-3.3 VSOP383 | VSOP383 | U1 |
| 1 | MCP73831T-2ACI/OT ALS-PT19-315C | ALS-PT19-315C | U2 |
| 1 | AP2112K-3.3 | SOT23-5 | U3 |
| 1 | SPI FLASH | SOIC8_150MIL | U4 |
| 1 | — | SYMBOL_MINUS | U$1 |
| 1 | — | FLORAMED | U$4 |
| 1 | ATSAMD21G18MU | TQFN48_7MM | U$5 |
| 1 | — | PCBFEAT-REV-040 | U$7 |
| 1 | — | CPLAY_EXPRESS_FRONT_REVG | U$16 |
| 1 | — | SYMBOL_FCC_5MM | U$33 |
| 1 | — | SYMBOL_CE_5MM | U$34 |
| 1 | — | SYMBOL_PLUS | U$35 |
| 1 | — | CPLAY_EXPRESS_BACK_REVD | U$46 |
| 1 | MMBT2222 mmbt2222 | SOT23-R | Q1 |
| 1 | MicroB USB | 4UCONN_20329_V2 | CN1 |
| 13 | SEWTAP-ALLIGATOR | SEWALLI | 3.3VTAP1, 3V3TAP2, GND3TAP1, GNDTAP1, GNDTAP2, IO9, IO10, IO12 +5 |
| 1 | 3-6VDC | JSTPH2 | BATT1 |
Show 31 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 6V+ 500mA | R1206 | F1 |
| 1 | KMR2 | BTN_KMR2_4.6X2.8 | RESET1 |
| 1 | 7.5mm SPK | BUZZER_SMT_7.5MM | SP1 |
| 2 | EVQQ | EVQ-Q2_SMALLER | SW1, SW2 |
| 1 | EG1390 | EG1390 | SWITCH1 |
| 1 | THERM | _0402 | THM1 |
| 1 | TESTPOINTROUND1.5MM | TESTPOINT_ROUND_1.5MM | TP1 |
| 2 | TESTPOINTROUND1.5MM | TESTPOINT_ROUND_1.5MM | TP5, TP6 |
| 1 | WS2812B3535 | LED3535 | LED1 |
| 9 | WS2812B3535 | LED3535 | LED2, LED3, LED4, LED5, LED6, LED7, LED8, LED9 +1 |
| 1 | GREEN | CHIPLED_0805_NOOUTLINE | PWR1 |
| 1 | MBRA120 MBR120 | SOD-123 | D1 |
| 1 | MBR120 | SOD-123 | D2 |
| 1 | PIN IR | CHIPLED_1206_NOOUTLINE | D3 |
| 1 | IR TX | CHIPLED_1206_NOOUTLINE | D5 |
| 1 | SEWTAP-ALLIGATOR | SEWALLI | D6 |
| 1 | RED | CHIPLED_0805_NOOUTLINE | L1 |
| 3 | 1uF | 0603-NO | C1, C3, C10 |
| 2 | 1UF 1uF | 0603-NO | C2, C5 |
| 1 | 1UF 10uF | 0805-NO | C4 |
| 1 | 10UF 1uF | 0603-NO | C6 |
| 1 | 22PF 10uF | 0805-NO | C8 |
| 1 | 0.1uF | 0603-NO | C9 |
| 1 | 100K 47K | 0603-NO | R1 |
| 2 | 10K | 0603-NO | R2, R4 |
| 1 | 1K | 0603-NO | R3 |
| 1 | 2.2K 1K | 0603-NO | R5 |
| 2 | 100K 10K | 0603-NO | R6, R7 |
| 1 | 10K 100 | 0603-NO | R8 |
| 1 | 100 | 0603-NO | R9 |
| 1 | 10K | 0603-NO | R10 |
Adafruit Circuit Playground Express design files
The KiCad project lives in the hulkco/oshwi repository on GitHub; these links point at the commit this page was built from.
Adafruit Circuit Playground Express: common questions
What microcontroller does the Adafruit Circuit Playground Express use?
The Adafruit Circuit Playground Express is built around the ATSAMD21G18MU, from the Microchip SAM family.
How big is the Adafruit Circuit Playground Express PCB?
The Adafruit Circuit Playground Express measures 50.8 × 50.6 mm and is 1.6 mm thick.
How many components are on the Adafruit Circuit Playground Express?
78 components, from 51 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 Adafruit Circuit Playground Express design files?
From the hulkco/oshwi repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Adafruit Circuit Playground Express design in my own project?
The repository has no license, so all rights stay with hulkco. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Adafruit Circuit Playground Express without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.
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