HardLabs

Sharp-LV

martinberlin·Sharp-LV

Sharp-LV PCB layout, top view — open source Nordic nRF board by martinberlin

About the Sharp-LV PCB

Sharp-LV is an open source Nordic nRF PCB design by martinberlin, published on GitHub under the MIT license. It is a 4-layer board measuring 69.7 × 44.7 mm, with 50 components from 32 distinct parts.

Its main chip is the NRF52840-QIAA-R, from the Nordic nRF family. Other key parts include the USBLC6-2P6, MCP1700-3302E_SOT23, RT9080-33GJ5 and TPS2113APW. By type, the board carries 21 capacitors, 8 resistors, 7 connectors, 5 ICs, 4 inductors and 3 crystals.

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

From the project

This KiCad board aims to be a low consumption driver for SHARP LCDs w/optional touch. MCU: Nordic RF52 (not tested) | ESP32S3 buy one in Tindie before sending to production

This will host the PCB KiCad files for a board that aims to be a low consumption driver for SHARP 2.7" MIP LCDs with optional touch. This is a current work in project and by any means ready to send anywhere to production. The factory we use to produce our prototypes and final PCBs is JLCPCB.com

The person that sold this in eBay had a BTC wallet project that didn't see the light as a product, and combined a Microchip Atmel capacitive touch with a Sharp 400x240 memory LCD:

Sharp-LV, from the project README
From the project README

Main components on the Sharp-LV

NRF52840-QIAA-RUSBLC6-2P6MCP1700-3302E_SOT23RT9080-33GJ5TPS2113APW

Sharp-LV bill of materials (BOM)

50 components, 32 distinct parts.

QtyPartRefs
1
NRF52840-QIAA-R
U1
1
USBLC6-2P6
U2
1
MCP1700-3302E_SOT23
U3
1
RT9080-33GJ5
U4
1
TPS2113APW
U5
1
32.768K
Y1
1
Crystal 32Mhz
Y2
1
RV-3032-C7
Y3
1
USB_C_Receptacle_USB2.0
J1
1
Conn_01x05_PROG
J2
1
5024260810
J3
1
FH52-10S-0.5SH(99)
FH52-10S-0.5SH_99
J4
1
SM04B-SRSS-TB(LF)(SN)
SM04B-SRSS-TB_LF__SN_
J5
1
Conn_2Rows-13Pins
J6
1
S2B-PH-SM4-TB(LF)(SN)
S2B-PH-SM4-TB_LF__SN_
J7
1
2450AT42E0100E
ANT1
1
Battery_Cell
BT1
2
10uH
L1, L2
1
15nH
L3
1
2.7nH
L4
Show 12 more
QtyPartRefs
4
12pF
C1, C2, C10, C11
1
100nF
C3
2
1uF
C4, C16
4
10uF
C5, C6, C14, C15
3
4.7uF
C7, C9, C22
1
100pF
C12
3
DNP
C13, C17, C18
1
820pF
C19
2
100nF
C20, C21
1
400
R1
3
5.1k
R2, R7, R8
4
3.3k
R3, R4, R5, R6

Sharp-LV design files

The KiCad project lives in the martinberlin/Sharp-LV repository on GitHub; these links point at the commit this page was built from.

Sharp-LV: common questions

What microcontroller does the Sharp-LV use?

The Sharp-LV is built around the NRF52840-QIAA-R, from the Nordic nRF family.

How big is the Sharp-LV PCB?

The Sharp-LV measures 69.7 × 44.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Sharp-LV?

50 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the Sharp-LV design files?

From the martinberlin/Sharp-LV repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Sharp-LV design in my own project?

Yes, under the terms of its MIT license, which martinberlin chose for the repository.

Can I test firmware for the Sharp-LV without the hardware?

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

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