added new heartbeat soldering kit

Author: marove2000

HeartbeatTHT/README.md

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+# Hearbeat - THT
+Small soldering kit in form of an heart. In the middle a beating heart led.
+
+<img src="manual/images/thumbnail.jpg" width=400px alt="Heartbeat THT">
+
+- Status: **Complete**
+- Difficulty: **2/5**
+
+### Parts List
+
+| Quantity | Name | Description | Label/Color Code |
+|----------|------|-------------|------------------|
+| 2 | Q1–Q2 | BC547 transistor | |
+| 1 | Q3 | BC557 transistor | |
+| 1 | C1 | 100 µF electrolytic capacitor | |
+| 1 | C2 | 100 nF ceramic capacitor (red) | 104 |
+| 1 | D1 | LED red 5 mm | |
+| 1 | BT1 | CR2032 battery holder | |
+| 2 | R1, R6 | Resistor 1 MΩ | |
+| 1 | R2 | Resistor 10 MΩ |  |
+| 4 | R3–R5, R7 | Resistor 10 kΩ |  |
+| 1 | — | Battery CR2032 (optional) | |
+| 1 | — | Circuit board | |
+
+### Manual
+You can find the manual and pictures of every step in the manual folder.
+
+### Where to buy a kit
+You can buy a kit with all neede parts here: [https://shop.blinkyparts.com/de/Heartbeat-Loetbausatz-Pulsierendes-LED-Herz-zum-Selbstloeten/blink23185](https://shop.blinkyparts.com/de/Heartbeat-Loetbausatz-Pulsierendes-LED-Herz-zum-Selbstloeten/blink23185)
+
+### Copyright and Authorship
+
+- Board: [CC-BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) - Timo Schindler @ [blinkyparts GmbH](https://shop.blinkyparts.com/de/Heartbeat-Loetbausatz-Pulsierendes-LED-Herz-zum-Selbstloeten/blink23185)
+- Manual (TeX): [LPPL](https://www.latex-project.org/lppl.txt) - [Marei Peischl](https://peitex.de)
+- Manual (pdf): [CC-BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/) - [Binary Kitchen e.V.](https://www.binary-kitchen.de)