TinySolder is a simple T12 Quick Heating Soldering Station based on the ATtiny13a featuring in 700 bytes of code:
For calibration you need a soldering iron tips thermometer. For best results wait at least three minutes after switching on the soldering station before you start the calibration. Calibrate at your prefered temperature using the trimpot.
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.
|Voltage (U)||Current (I) = U / R||Power (P) = U² / R|
|16 V||2.00 A||32 W|
|17 V||2.13 A||36 W|
|18 V||2.25 A||41 W|
|19 V||2.38 A||45 W|
|20 V||2.50 A||50 W|
|21 V||2.63 A||55 W|
|22 V||2.75 A||61 W|
|23 V||2.88 A||66 W|
|24 V||3.00 A||72 W|
In addition to the components for the PCB you will need the following:
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.
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