4 layers99.1 × 101.6 mm
Driving module
schuhumi/autocut
autoCut is a heavy duty 4x4 automatic lawn mower robot
74 parts38GPL-3.0
2 layers100.3 × 100.2 mm
Maehwerktreiber
schuhumi/autocut38autoCut is a heavy duty 4x4 automatic lawn mower robot
- Size
- 100.3 × 100.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 93
- Nets
- 47
- Pads
- 421
- Tracks, vias
- 633, 3
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 29 Jun 2014
- Updated
- 10 Apr 2020
Overview
Maehwerktreiber is an open-source printed circuit board by schuhumi, from the schuhumi/autocut repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 100.3 × 100.2 mm with 93 parts on 47 nets, routed with 633 tracks and 3 vias.
It is built around the IRF650AP-VB. Its parts include 22 resistors, 17 diodes, 13 capacitors, 9 connectors and 4 transistors. It belongs with the robots and motor control boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
README.mdautoCut
autoCut is an automatic lawn mower robot. It features:
- Four weel drive with kink steering
- Motorized mowing height leveling
- Two 85 watt mowing motors, each equipped with two very sharp blades, able to snap back on hard obstacles
- On the fly interchangeable LiPo-battery with voltage monitoring
- Wifi network connection for web interface which includes gamepad remote control
- Raspberry Pi as its main computer and head of the microcontroller i2c-network
progress
What it can do already:
- [drive system] works pretty much brilliant
- [power supply] Measures individual cell voltages and rings an audible alarm in case of undervoltage or improper connected battery. Handles battery changes without losing power for the control system
- [main module] Raspberry works quite well with ArchLinux ARM and provides a webinterface on the network. Will be replaced by Cubieboard 2 since RasPi has hardware I2C issues
- [mowing module] Runs the mowing motors with a reasonably decent rpm regulation algorithm. Electrical mowing height adjustment through web interface is implemented.
What it can't do yet:
- [power supply] Measure the current as well as the total battery voltage
- [general] No environmental sensoring for automatic movement yet, so manual control is needed
Things to improve:
- [power supply] design a proper pcb (its on a prototyping board so far)
- [mowing module] Change FETs for ones with lower heat dissipation and enhance the rpm regulation algorithm
Preserved for the future:
- Build an automatic battery changing and charging station
Parts
93| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | DIODE | D4 | D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D15, D16, D17 |
| 7 | 100R | SM0805 | R8, R9, R10, R13, R14, R19, R20 |
| 6 | 1k | SM0805 | R1, R2, R3, R5, R6, R7 |
| 4 | 100n | SM0805 | C2, C3, C4, C7 |
| 4 | 1u | C2 | C8, C9, C10, C11 |
| 4 | 3k9 | R3 | R15, R16, R21, R22 |
| 4 | 8k2 | R3 | R11, R12, R17, R18 |
| 4 | IRF650A | TO220_VERT_PPNR | Q1, Q2, Q3, Q4 |
| 4 | Val** | SIL-18 | SIL-18, SIL-18, SIL-18, SIL-18 |
| 3 | Val** | SIL-3 | SIL-3, SIL-3, SIL-3 |
| 3 | Val** | SIL-6 | SIL-6, SIL-6, SIL-6 |
| 3 | Val** | SIL-15 | SIL-15, SIL-15, SIL-15 |
| 2 | 10u | C2V8 | C1, C12 |
| 2 | 22pF | C1 | C5, C6 |
| 2 | CONN_5X2 | VASCH5x2 | P8, P9 |
| 2 | Val** | SIL-8 | SIL-8, SIL-8 |
| 1 | 1000u | C2V10 | C13 |
| 1 | 10MHz | VALVE-GLIMM | X1 |
| 1 | 10k | SM0805 | R4 |
| 1 | ATMEGA323-P | DIP-40__600 | IC1 |
| 1 | CONN_4 | Molex | P7 |
| 1 | CONN_ADC6 | PIN_ARRAY_3X1 | K1 |
| 1 | CONN_ADC7 | PIN_ARRAY_3X1 | K2 |
| 1 | CONN_M298A | AK300-2 | P1 |
| 1 | CONN_M298B | AK300-2 | P2 |
| 1 | CONN_MFET1 | AK300-2 | P3 |
| 1 | CONN_MFET2 | AK300-2 | P4 |
| 1 | CONN_MFET3 | AK300-2 | P5 |
| 1 | CONN_MFET4 | AK300-2 | P6 |
| 1 | Hole1 | 1pin | 1PIN_1 |
| 1 | Hole2 | 1pin | 1PIN_2 |
| 1 | Hole3 | 1pin | 1PIN_3 |
| 1 | INDUCTOR | CP5 | L1 |
| 1 | L298 | MULTIWATT-15 | U1 |
| 1 | LED | LED-3MM | D9 |
| 1 | Val** | SIL-13 | SIL-13 |
| 1 | Val** | SIL-12 | SIL-12 |
| 1 | Val** | SIL-10 | SIL-10 |
| 1 | Val** | SIL-4 | SIL-4 |
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schuhumi/autocut
autoCut is a heavy duty 4x4 automatic lawn mower robot
9 parts38GPL-3.0
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Questions
How big is the Maehwerktreiber PCB?
It measures 100.3 × 100.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Maehwerktreiber use?
93 parts, built around the IRF650AP-VB. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Maehwerktreiber KiCad files?
From the schuhumi/autocut repository on GitHub, at the commit this page was made from: the board is Electronics/Mowing Module/maehwerktreiber.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Maehwerktreiber design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).