AllWizeK2-hardware
AllWize·AllWizeK2-hardware·RevPB/k2.kicad_pcb
About the AllWizeK2-hardware PCB
AllWizeK2-hardware is an open source Microchip SAM PCB design by AllWize, published on GitHub under the LGPL-2.1 license. It is a 2-layer board measuring 67.6 × 25 mm, with 90 components from 42 distinct parts.
Its main chip is the ATSAMD21G18A-MU, from the Microchip SAM family. Other key parts include the ATECC508A-MAHDA-T, RC1701HP-MBUS4 and TLV75733PDRVR. By type, the board carries 27 resistors, 25 capacitors, 11 connectors, 8 transistors, 7 diodes and 4 ICs.
From the project
Hardware files for the AllWize K2 board
The AllWize K2 is an Arduino(TM) MKR compatible board based on the SAMD21G microchip and a RadioCrafts RC1701HP module.
AllWize K2 Wiki Page AllWize Boards to support the AllWize K2 board from the Arduino IDE and PlatformIO * AllWize Library that supports the RC1701HP radio module.

Main components on the AllWizeK2-hardware
AllWizeK2-hardware bill of materials (BOM)
90 components, 42 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ATECC508A-MAHDA-T ECC508A | UDFN-8-1EP_3x2mm_P0.5mm_EP1.4x1.6mm | U1 |
| 1 | RC1701HP-MBUS4 RC1701xx-MBUS | RC1701xx-MBUS | U2 |
| 1 | ATSAMD21G18A-MU SAMD21G18 | QFN-48-1EP_7x7mm_P0.5mm_EP5.15x5.15mm | U3 |
| 1 | TLV75733PDRVR TLV757P | WSON-6 | U4 |
| 4 | 2N7002T-7-F 2N7002T | SOT-523-3 | Q1, Q2, Q5, Q8 |
| 4 | DMP2065UFDB-7 DMP2065UFDB | U-DFN2020-6 | Q3, Q4, Q6, Q7 |
| 1 | ABS07-32.768KHZ-T 32768Hz | ABS07-32768Hz | Y1 |
| 1 | USB_B_Micro | USB_Micro-B_ZX62-AB-5PA_31 | J1 |
| 1 | OSTVN02A150 Conn_01x02 | OSTVN02 | J2 |
| 1 | 20021121-00010C4LF Conn_02x05_Odd_Even | PinHeader_2x05_P1.27mm_Vertical_SMD | J3 |
| 1 | Conn_Coaxial_uFL | uFL-CONN | J4 |
| 1 | M20-8760342 Conn_02x03_Odd_Even | PinHeader_2x03_P2.54mm_Vertical_SMD | J5 |
| 2 | C000118 Conn_01x14 | PinHeader_1x14_P2.54mm_Vertical | J6, J7 |
| 4 | NPTH-HOLE | HOLE_2.5MM | J15, J16, J21, J22 |
| 1 | OSH | osh | G3 |
| 1 | PB_FREE | Pb-free | G4 |
| 1 | PUSHBUTTON | PTS8020 | SW1 |
| 3 | KPHD-1608LVZGCK LED-DIODE | LED_0603 | D1, D2, D5 |
| 1 | PRTR5V0U2X | SOT-143 | D3 |
| 2 | PMEG2005EL | SOD-882 | D4, D6 |
Show 22 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | KPHD-1608LVSYCK LED-DIODE | LED_0603 | D7 |
| 3 | BLM18SG331TN1 Ferrite_Bead | R_0603 | L1, L2, L3 |
| 1 | LQW15AN20NG00D 20n | R_0402 | L4 |
| 1 | C0805V472KDRACTU 4n7 | C_0805 | C1 |
| 1 | GRM155R71H103KA88J 10n | C_0402 | C2 |
| 10 | GCM155R71H104KE02D 100n | C_0402 | C3, C4, C5, C8, C9, C10, C16, C17 +2 |
| 1 | GRM155R60J475ME47D 4u7 | C_0402 | C6 |
| 5 | GRM188R61C106KAALD 10u | C_0603 | C7, C15, C19, C22, C23 |
| 2 | CBR04C200J5GAC 20p | C_0402 | C11, C12 |
| 3 | GRM155R61E105KA12D 1u | C_0402 | C13, C14, C18 |
| 2 | GRM1555C1H120JA01J 12p | C_0402 | C24, C25 |
| 1 | RCV08051M00FKEA 1M | R_0805 | R1 |
| 4 | RCS04021K00FKED 1k | R_0402 | R2, R3, R14, R24 |
| 3 | RC0402FR-074K7L 4k7 | R_0402 | R4, R26, R27 |
| 1 | MF-PSMF075X-2 PTC | R_0805 | R5 |
| 5 | CRCW0402100KFKEDC 100k | R_0402 | R6, R7, R8, R16, R23 |
| 4 | RC0402FR-07330RL 330R | R_0402 | R9, R18, R20, R21 |
| 1 | RC0402FR-07680KL 680k | R_0402 | R10 |
| 1 | CRCW0402330KFKEDC 330k | R_0402 | R11 |
| 3 | CRCW040210K0FKEDC 10k | R_0402 | R12, R17, R25 |
| 3 | CRCW0402100KFKEDC 10k | R_0402 | R13, R19, R22 |
| 1 | RC0402FR-0747KL 47k | R_0402 | R15 |
AllWizeK2-hardware design files
The KiCad project lives in the AllWize/AllWizeK2-hardware repository on GitHub; these links point at the commit this page was built from.
AllWizeK2-hardware: common questions
What microcontroller does the AllWizeK2-hardware use?
The AllWizeK2-hardware is built around the ATSAMD21G18A-MU, from the Microchip SAM family.
How big is the AllWizeK2-hardware PCB?
The AllWizeK2-hardware measures 67.6 × 25 mm, has 2 copper layers and is 1.6002 mm thick.
How many components are on the AllWizeK2-hardware?
90 components, from 42 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 AllWizeK2-hardware design files?
From the AllWize/AllWizeK2-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the AllWizeK2-hardware design in my own project?
Yes, under the terms of its LGPL-2.1 license, which AllWize chose for the repository.
Can I test firmware for the AllWizeK2-hardware 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.
Similar boards
Microchip SAM
Fpgaboy
Wren6991
50 × 50 mm89 parts4LNo license508Microchip SAM
Kira
kiibohd
366.9 × 114.3 mm400 partsCERN-OHL-1.2415Microchip SAM
DSKY driver
benkrasnow
43 × 92.3 mm44 partsMIT258Microchip SAM
Duet 2 Maestro
Duet3D
100 × 123 mm336 partsCERN-OHL-1.2257Microchip SAM
Makennbot
idlehandsdev
60 × 75 mm53 parts2LNo license175Microchip SAM
Oxidized flash
blakesmith
61 × 21.6 mm19 parts2LNo license167