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Ikoka nano meshtastic device

ndoo·ikoka-nano-meshtastic-device

Ikoka nano meshtastic device PCB layout, top view — open source Nordic nRF board by ndoo
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About the Ikoka nano meshtastic device PCB

Ikoka nano meshtastic device is an open source Nordic nRF PCB design by ndoo, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 40 × 40 mm, with 18 components from 14 distinct parts.

Its main chip is the Seeed Studio XIAO nRF52840, from the Nordic nRF family. Other key parts include the E22-900M30S and MT3608B. By type, the board carries 4 connectors, 4 capacitors, 3 ICs, 3 resistors, 2 diodes and 1 transistor.

It belongs with the power & battery and iot & wireless designs in this gallery.

From the project

A Meshtastic device based on the Seeed Studio XIAO nRF52840 and EBYTE E22-XXXMXXS series LoRa modules. Pinout matches the Meshtastic xiao_ble variant.

A Meshtastic device based on the Seeed Studio XIAO nRF52840 and EBYTE E22-XXXMXXS series LoRa modules. Pinout matches the Meshtastic xiao_ble variant.

The focus is on small size without an onboard display or buttons, meaning it must be used with Meshtastic client software, or as a remote repeater managed with remote node administration.

USB-C for power and data Qwiic connector for I²C sensors Battery connectors (PicoBlade 1.25-2P) Solar connector (PicoBlade 1.25-2P, 4.45 to 6.45 V - BQ25100 charge IC)

Ikoka nano meshtastic device, from the project README
From the project README

Main components on the Ikoka nano meshtastic device

Seeed Studio XIAO nRF52840E22-900M30SMT3608B

Ikoka nano meshtastic device bill of materials (BOM)

18 components, 14 distinct parts.

QtyPartRefs
1
Seeed Studio XIAO nRF52840
U1
1
E22-900M30S
U2
1
MT3608B
U3
1
AO3401A
Q1
1
Qwiic_RA
J1
1
Solar
J2
1
Battery
J3
1
Battery
J4
2
DSK26
D1, D2
1
SMMS0650-220M
FXL0420-2R2-M
L1
2
CL31A107MQHNNNE
47uF
C1, C2
2
CL10A226MQ8NRNC
22uF
C3, C4
2
0603WAF1502T5E
300k
R1, R3
1
0603WAF1871T5E
39k
R2

Ikoka nano meshtastic device design files

The KiCad project lives in the ndoo/ikoka-nano-meshtastic-device repository on GitHub; these links point at the commit this page was built from.

Ikoka nano meshtastic device: common questions

What microcontroller does the Ikoka nano meshtastic device use?

The Ikoka nano meshtastic device is built around the Seeed Studio XIAO nRF52840, from the Nordic nRF family.

How big is the Ikoka nano meshtastic device PCB?

The Ikoka nano meshtastic device measures 40 × 40 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Ikoka nano meshtastic device?

18 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ikoka nano meshtastic device design files?

From the ndoo/ikoka-nano-meshtastic-device repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ikoka nano meshtastic device design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which ndoo chose for the repository.

Can I test firmware for the Ikoka nano meshtastic device 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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