ISPnub - Stand-alone AVR programmer module
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- 1) Bus-powered hub - this type of hub gets power from the USB port to which it is connected only. 2) Self-powered hub - this type of hub gets power from an external power source (AC Adapter). For a bus-powered hub, there will typically be enough power to power low power devices such as flash drives, a mouse, keyboard, etc.
- 1 Free shipping not available for parts and accessories. Free shipping to qualifying US destinations in the contiguous United States; not available for P.O. Boxes, addresses outside the contiguous 48 states, international addresses, Army Post Office (APO), Diplomatic Post Office (DPO) and Fleet Post Office (FPO).
- Works under multiple platforms. Linux, Mac OS X and Windows are tested.
- No special controllers or smd components are needed.
- Programming speed is up to 5kBytes/sec.
- SCK option to support targets with low clock speed (< 1,5MHz).
Firmware and circuitThe following packages include circuit and firmware.
usbasp.2011-05-28.tar.gz (519 kB) TPI support, supports programmers with ATMega88 and ATMega8.
usbasp.2009-02-28.tar.gz (260 kB)
usbasp.2007-10-23.tar.gz (172 kB)
Drivers Sangon Elettronica Port Devices Viausbasp.2007-07-23.tar.gz (176 kB)
usbasp.2006-12-29.tar.gz (118 kB) Supports programmers with ATMega48 and ATMega8.
usbasp.2006-09-16.tar.gz (116 kB) New VID/PID!
usbasp.2005-11-14.tar.gz (175 kB)
usbasp.2005-07-03.tar.gz (166 kB)
Drivers Sangon Elettronica Port Devices Gigabitusbasp.2005-04-21.tar.gz (169 kB)
Please refer to Readme.txt for details on building, installing and using USBasp.
DriversOn Linux and MacOS X no kernel driver is needed. Windows requires a driver for USBasp. Please use this driver installation tool for Windows (see also: successful setup on Windows 10):
Zadig - USB driver installation made easy
- AVRDUDE supports USBasp since version 5.2.
- BASCOM-AVR supports USBasp since version 184.108.40.206.
- Khazama AVR Programmer is a Windows XP/Vista GUI application for USBasp and avrdude.
- eXtreme Burner - AVR is a Windows GUI Software for USBasp based USB AVR programmers.
|C3, C4||22p||KERKO 22P|
|D1, D2||3V6 zener||ZF 3,6|
|IC1||ATmega8-16||ATMEGA 8-16 (not programmed!)|
|JP1, JP2||2pol 2,54mm||SL 1X36G 2,54|
|LED1||3mm LED green||LED 3MM 2MA GN|
|LED2||3mm LED red||LED 3MM 2MA RT|
|R1, R2||68||1/4W 68|
|R4, R5, R6, R7||270||1/4W 270|
|R9, R10||1k||1/4W 1k|
|M1, M2||Jumper||JUMPER 2,54GL SW|
|M3||Socket 28S||GS 28-S|
User PCB layoutsHere is a list of tested PCB layouts. If you have designed your own PCB, please let me know.
Drivers Sangon Elettronica Port Devices Online
by Thomas Fischl
Single-Side PCB, TARGET 3001! layout file
Size: 90x40 mm (optimized for case Hammond 1591ATBU)
by Pawel Szramowski (11/2007)
With Low-voltage front-end.
Single-Side PCB, EAGLE layout files, some SMD components
| by Bernhard Walle|
Double-Side PCB, EAGLE layout files, part list with order numbers for Reichelt.de and Conrad.de
Size: optimized for case Hammond 1591ATBU
by Thomas Pfeifer
Single-Side PCB, PDF layout files, SMD components
| by Tomasz Ostrowski|
Single-Side PCB, PDF and EPS layout files, only four 0805 SMD parts, rest discrete components
by Christian Heigemeyr
Single-Side PCB, with some SMD 0805 components, PDF-files
With additional buttons for reset and disconnection of the target
ComponentSide.pdf, TopSide.pdf, Schematics.pdf
by Zhurov Pavel
Single-Side PCB, P-CAD 2002 format and PDF files
Crosspiece TXD and RXD are added for the ISP connector
by J.A. de Groot
The board is single sided (EAGLE format), measures 3 by 8 cm and uses only regular components.
by Matthias Görner
Single-Side PCB, eagle-format, with PS/PDF-files
integrated sockets for target chips ATmega8 and ATmega32
|Tarball with layout|
by Hannes Östlund
Doubleside-Side PCB, SMD components, very small
| by Sergiy Bogdancev (01/2010)|
3.3V version, ATMega48 only. Single-side PCB, ExpressPCB layout format + socket board for varies AVRs. Without future serial interface, chip initially must be programmed with another programmer.
|Eaglefiles (sch/brd) and CAD case design (dxf)|
by Hans Hafner, HTL Mössingerstrasse-Klagenfurt, Österreich, hans.hafner (at) htl-klu (dot) at
CNC-milled case (DXF file available), Eagle layout, only a few SMD parts
|Different USBasp versions: Easy to built non-smd, smd version and a very small USBasp|
by Sven Hedin (01/2011)
Eagle files available.
|USB Key AVR Programmer|
by Fabio Baltieri (09/2011)
Very small USB key like dimensions. SMD parts.
|AVR ISP Programmer|
by Jaroslav Vadel (04/2012)
Small programmer. SMD parts.
|Target project and PDFs (layout/schematics)|
by Marius Schäfer (09/2013)
|tinyUSBboard with USBasp-compatible firmware|
by Stephan Bärwolf (04/2014)
| USBasp on breadboard with socket for controller daughter boards.|
by Fabian Hummel (11/2018)
| Tjaart van Aswegen designed an SMD board: DIP TRACE and GERBER files.|
by Tjaart van Aswegen (09/2019)
| Feature rich (e.g. different voltage levels, integrated USB to serial converter, USB-C connector) USBasp compatible design. AVR Programmer Github project.|
by Brian Pepin (12/2019)
| USBasp with ZIF socket and through hole components. KiCad design on Github|
by Bruno (04/2020)
| USBasp board with additional 6pin header and selectable target supply (3.3V/off/5.0V).|
by Marty E. (10/2020)
| John included a 40 pin universal socket which takes 8, 14, 20 and 28 pin devices. He also added a versatile crystal oscillator with outputs of 1, 2, 4, 8 and 16 Mhz to clock the chips. There is also the standard 6pin ICSP connector and a user led connected to the MOSI pin.|
by John P. (11/2020)
Linkshttp://www.obdev.at/products/avrusb/ Firmware-only AVR USB driver