Versatile ATtiny Programming Adapter

Lucky Resistor designed this programming adapter for ATtiny13 and similar chips:


A Versatile ATtiny Programming Adapter

As mentioned in my article about designing a cheap plant watering sensor, I built a small adapter which can be used to pre-program the ATtiny13A. This is necessary, because once soldered on the board, I only have a debugWire interface, which has to be enabled first.


The adapter has a small 50mil JTAG header, where the Atmel ICE can be connected with the board. There is also room for a USB mini jack, which is used to power the MCU while programming. A small on-off switch is used to power the MCU and a LED is placed as indicator to see if the MCU has power.

One of the DIL/ZIF adapters is mounted on top of the female headers. Most of the adapters for SO-8, SO-14 and SO-16 will work with this board.

To make the board more versatile, I added a number of jumpers and solder points. By default, the adapter is connecting to the right pins for the ATtiny13A, but you can cut these routes and solder wires onto the board to implement any kind of connection you like.

The design files are available on GitHub:

github.png LuckyResistor/ATtinyAdapter

LuckyResistor has shared the board on OSH Park:

ATtiny Adapter

Order from OSH Park

Versatile ATtiny Programming Adapter

$3 Tinusaur board on IndieGoGo

Neven Boyanov has launched a new Tinusaur campaign on IndieGoGo:

Learn, Teach and Make with the Tinusaur

Small microcontroller board that could run Arduino and help you learn, teach others and make things


The Tinusaur is powered by the Atmel ATtiny85 microcontroller.

We want to bring the cost down to $3 for the basic “lite” boards
and allow more people to be able to get them.

$3 Tinusaur board on IndieGoGo

ATtiny45 motion sensing night light

DanR has shared this motion sensing night light board:


ATtiny45 motion sensing night light V1.2 D

This light is powered by an ATtiny45/85 which powers on the 14 LED lights when motion is sensed and it is in a dark room. The light sensor on the board will not allow the lights to come on if it is in a reasonably lit room.

It is fitted with a barrel plug for power, this model specifically with an L7805CV voltage regulator.

Order from OSH Park

ATtiny45 motion sensing night light

DICE10: electronic dice controlled by two GPIO

Yay, another mini-project with the ATtiny10! A while ago I devised a scheme to drive an electronic dice with only two IO lines. I finally found the time and motivation to build up a small design using this as an entry for the hackaday 1k compo

via DICE10 – electronic dice controlled by two GPIO. — Tim’s Blog

DICE10: electronic dice controlled by two GPIO


designed this simple board with two ATTiny processors powered by a micro USB connector.


Micro USB power input to two ATTiny MCU’s. There are two different ATTinys on this board. An ATTiny84 and an ATTiny85. These MCUs are great because they can be used with no additional components.  In fact, on this board, the only additional components are some filter capacitors for the power rail and a header for the programmer interface.

I have exposed an array of copper pads for every pin. This makes it easy to add LEDs or to wire to just about any sensor.

jonmash has shared the board on OSH Park:


Order from OSH Park


BFuse: Electronic Fuse for Breadboard


created this solution to make breadboard prototyping safer for components:

BFuse – Electronic Fuse for Breadboard

adjustable and programmable electronic fuse especially designed for breadboards – a breadboard fuse, or BFuse


The trip current can be set from 50 mA to 1 A but it can measure current up to 6 A [..] It has reverse polarity protection (by P-FET), transient voltage suppressors both on its input and output and two LEDs for indication


Set current and actual current can be compared using ATTiny’s built-in comparator or sampled by the ATTiny’s ADC. Then, the microprocessor controls a P-FET switch that opens or closes the power supply
BFuse: Electronic Fuse for Breadboard