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Avrostr

rkralovic·avrostr

Avrostr PCB layout, top view — open source board by rkralovic
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About the Avrostr PCB

Avrostr is an open source PCB design by rkralovic, published on GitHub under the Custom license license. It is a 2-layer board measuring 31.8 × 58.4 mm, with 34 components from 23 distinct parts.

Other key parts include the 4518-ULN2803A, 757-TCR1HF33BLMCT, 494-AVR64DD32-I/PT and 595-TPS630702RNMR. By type, the board carries 14 capacitors, 6 connectors, 5 resistors, 4 ICs, 3 diodes and 1 switch.

It belongs with the robotics & motion designs in this gallery.

From the project

This project is an implementation of a turtle robot based on AVR microcontroller.

This project is an implementation of a turtle robot based on AVR microcontroller.

The hardware design is based on https://www.instructables.com/OSTR/.

Mechanical parts are designed using OpenSCAD. Running make in the mechanical directory builds STL files suitable for 3d-printing. The design has the following parts:

Chassis.scad is the main chassis structure. Caster.scad holds a support bearing ball. PenCollar.scad holds the pen. Wheel.scad is the wheel. You need to print 2 of them

Avrostr, from the project README
From the project README

Main components on the Avrostr

4518-ULN2803A757-TCR1HF33BLMCT494-AVR64DD32-I/PT595-TPS630702RNMR

Avrostr bill of materials (BOM)

34 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
4518-ULN2803A
ULN2803
U1
1
757-TCR1HF33BLMCT
TCR1HF33
U2
1
494-AVR64DD32-I/PT
AVR64DD32-I/PT
U3
1
595-TPS630702RNMR
TPS63070
U4
1
649-78511-203HLF
UPDI
J1
1
932-MIKROE-1530
LEFT_STEPPER
P3
1
932-MIKROE-1530
RIGHT_STEPPER
P4
1
651-1984617
BATT1
P5
1
651-1984617
BATT2
P6
1
538-22-28-9034
SERVO
P7
1
SKQGADE010
SMD-BUTTON_4P-5.2X5.2X1.5MM-SKQGADE010_
SW1
1
241-BAT54BRWR100001
BAT54BRW
D1
2
710-150060RS75000
RED
D2, D3
1
XFL4020-102MEC
1u
L1
2
81-GRM155R61A106ME1D
10u
C1, C3
2
81-GRM32ER61A107ME0K
100u
C2, C4
5
81-GRM155R61H105ME5D
1u
C5, C6, C7, C9, C11
4
81-GRM155R71H104KE4D
100n
C8, C10, C12, C14
1
GCM188R71H224KA64
220n
C13
2
603-RC0402FR-13510RL
510
R1, R3
Show 3 more
QtyPartRefs
1
603-AC0402FR-071KL
1K
R2
1
RC0402FR-07604KL
600k
R4
1
791-WR04X1003FTL
100k
R6

Avrostr design files

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

Avrostr: common questions

How big is the Avrostr PCB?

The Avrostr measures 31.8 × 58.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Avrostr?

34 components, from 23 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 Avrostr design files?

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

Can I use the Avrostr design in my own project?

It is published under Custom license, which limits how it may be reused; read the license before building on it.

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