1. Overview

TinySolder is a simple T12 Quick Heating Soldering Station based on the ATtiny13a featuring in 700 bytes of code:

• Temperature measurement of the tip
• Direct control of the heater
• Temperature control via potentiometer
• Handle movement detection (by checking ball switch)
• Time driven sleep/power off mode if iron is unused (movement detection)

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• Project Video: https://youtu.be/LOpmxG2Fvpo
• Description and Firmware: https://github.com/wagiminator/ATtiny13-TinySolder

2. Power Supply Specification Requirements

Choose a power supply with an output voltage between 16V and 24V which can provide an output current according to the table below. The power supply must be well stabilized. The current and power is determined by the resistance (R = 8 Ohm) of the heater.

3. Building Instructions

In addition to the components for the PCB you will need the following:

• 3D-printed case
• Aviator Plug (4- or 5-pin depending on your iron handle)
• DC Power Jack (5.5 * 2.1 mm)
• Rocker Switch (KCD1 15 * 10 mm)
• Some wires
• 4 Self-tapping screws (2.3 * 5 mm)

Make sure that all parts fit nicely into the case. Solder the wires to the connectors and protect them with heat shrinks. Use thick wires (AWG18) for the power connections. Make all connections according to the schematic down below. Solder the wires directly to the corresponding pads on the pcb. To make the soldering station ESD-safe, connect the earth (E) terminal of the aviator plug to a female dupont connector and glue it into the corresponding opening on the case. Now you can connect the soldering station via a male dupont connector to an earth terminal. Upload the firmware and screw the pcb on top of the case.

4. License

This work is licensed under Creative Commons Attribution-ShareAlike 3.0 Unported License. (http://creativecommons.org/licenses/by-sa/3.0/)