HardLabs

IRIS-868

StringLess80·IRIS-868·hardware/kicad/IRIS-868.kicad_pcb

IRIS-868 PCB layout, top view — open source STM32 board by StringLess80

About the IRIS-868 PCB

IRIS-868 is an open source STM32 PCB design by StringLess80, published on GitHub. It is a 2-layer board measuring 74.2 × 32 mm, with 37 components from 20 distinct parts.

Its main chip is the STM32F303RET6, from the STM32 family. Other key parts include the E22-900M22S, AP2112K-3.3 and USBLC6-2SC6. By type, the board carries 19 capacitors, 5 connectors, 5 resistors, 4 ICs, 2 inductors and 1 crystal.

It belongs with the rf & radio and iot & wireless designs in this gallery.

From the project

IRIS-868 is a custom embedded RF platform based on the STM32F303RET6 microcontroller and Semtech LLCC68 sub-GHz transceiver, designed for 868 MHz ISM-band wireless communication.

Custom embedded RF platform for the 868 MHz ISM band

IRIS-868 is a custom embedded RF platform based on the STM32F303RET6 microcontroller and Semtech LLCC68 sub-GHz transceiver, designed for 868 MHz ISM-band wireless communication.

- Gallery - System architecture - Repository layout - Hardware overview - Pin assignment - Board specification - Bill of materials - Getting started - Known limitations

IRIS-868, from the project README
From the project README

Main components on the IRIS-868

E22-900M22SSTM32F303RET6AP2112K-3.3USBLC6-2SC6

IRIS-868 bill of materials (BOM)

37 components, 20 distinct parts.

QtyPartRefs
1
E22-900M22S
IC1
1
STM32F303RET6
U1
1
AP2112K-3.3
U2
1
USBLC6-2SC6
U3
1
16 MHz
Y1
1
PRG
J1
1
USB_B_Micro
J2
1
SWD
J3
1
128x64 OLED
J4
1
SMA
J6
1
RED
D1
2
120 R
FB1, FB2
9
100 nF
C1, C2, C3, C4, C5, C10, C16, C17 +1
1
10 uF
C6
1
10 nF
C7
5
1 uF
C8, C9, C13, C14, C15
2
12 pF
C11, C12
1
22 uF
C18
1
10 k
R1
4
1k5
R2, R3, R4, R5

IRIS-868 design files

The KiCad project lives in the StringLess80/IRIS-868 repository on GitHub; these links point at the commit this page was built from.

IRIS-868: common questions

What microcontroller does the IRIS-868 use?

The IRIS-868 is built around the STM32F303RET6, from the STM32 family.

How big is the IRIS-868 PCB?

The IRIS-868 measures 74.2 × 32 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IRIS-868?

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

Where can I download the IRIS-868 design files?

From the StringLess80/IRIS-868 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the IRIS-868 design in my own project?

The repository has no license, so all rights stay with StringLess80. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the IRIS-868 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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