HardLabs

Pocket knife sense display

unsurv·NFC_temp·hardware/nfc_pocket_knife_display/pocket_knife_sense_display.kicad_pcb

Pocket knife sense display PCB layout, top view — open source AVR/Arduino board by unsurv

About the Pocket knife sense display PCB

Pocket knife sense display is an open source AVR/Arduino PCB design by unsurv, published on GitHub. It is a 4-layer board measuring 14.8 × 38.8 mm, with 29 components from 20 distinct parts.

Its main chip is the ATtiny1626-MFR, from the AVR/Arduino family. Other key parts include the TMP117AIDRVR and NTAG link. By type, the board carries 13 capacitors, 5 resistors, 4 diodes, 3 ICs, 1 transistor and 1 connector.

It belongs with the displays & leds and sensors designs in this gallery.

From the project

passive temperature NFC tag

Main components on the Pocket knife sense display

TMP117AIDRVRNTAG linkATtiny1626-MFR

Pocket knife sense display bill of materials (BOM)

29 components, 20 distinct parts.

QtyPartRefs
1
TMP117AIDRVR
Texas Instruments
U1
1
NTAG link
U2
1
ATtiny1626-MFR
U3
1
Si1308EDL
Q1
1
Conn_01x20_Pin
J2
1
Antenna_Dipole
AE1
1
LED
D1
3
MBR0530
D2, D3, D4
1
47uH 500mA
L1
1
1 uF
C1
5
298W107X0004M2T
1 uF 25 V
C2, C4, C5, C9, C10
2
0.1 uF
C3, C8
1
298W107X0004M2T
15 pF
C6
1
8.3 pF
C7
2
298W107X0004M2T
4.7uF
C11, C12
1
298W107X0004M2T
1uF
C13
2
4.7k
R1, R2
1
1k
R3
1
2.2
R4
1
10k
R5

Pocket knife sense display design files

The KiCad project lives in the unsurv/NFC_temp repository on GitHub; these links point at the commit this page was built from.

Pocket knife sense display: common questions

What microcontroller does the Pocket knife sense display use?

The Pocket knife sense display is built around the ATtiny1626-MFR, from the AVR/Arduino family.

How big is the Pocket knife sense display PCB?

The Pocket knife sense display measures 14.8 × 38.8 mm, has 4 copper layers and is 0.786 mm thick.

How many components are on the Pocket knife sense display?

29 components, from 20 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pocket knife sense display design files?

From the unsurv/NFC_temp repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Pocket knife sense display design in my own project?

The repository has no license, so all rights stay with unsurv. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Pocket knife sense display without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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