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Mikola Tesla-QCW-DRSSTC-controller

arsinovgleb5-create·Mikola_Tesla-QCW-DRSSTC-controller·hardware/control_board/kicad/qcw_board.kicad_pcb

Mikola Tesla-QCW-DRSSTC-controller PCB layout, top view — open source ESP32 board by arsinovgleb5-create
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About the Mikola Tesla-QCW-DRSSTC-controller PCB

Mikola Tesla-QCW-DRSSTC-controller is an open source ESP32 PCB design by arsinovgleb5-create, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 85 × 72 mm, with 30 components from 16 distinct parts.

Its main chip is the ESP32 DevKit 30 pin, from the ESP32 family. Other key parts include the TC4420. By type, the board carries 13 resistors, 9 connectors, 5 capacitors, 2 ICs and 1 module.

It belongs with the displays & leds and power & battery designs in this gallery.

From the project

QCW DRSSTC controller: ESP32 ramp generator + interrupter, CYD ramp display, single-sided control board. CC BY 4.0

Author: MikolaTesla · License: CC BY 4.0 — share and adapt freely, just credit the author (see LICENSE`).

A hand-held controller ("interrupter + ramp generator") for a QCW DRSSTC Tesla coil. An ESP32 DevKit generates the ramp envelope for the buck modulator and the interrupter gate signal, reads seven knobs and three buttons, and shows the ramp shape on a small touch-screen board (ESP32-2432S028R, "Cheap Yellow Display"). Both signals leave the controller over plastic optical fiber (HFBR transmitters), so the controller has no galvanic connection to the bridge.

Main components on the Mikola Tesla-QCW-DRSSTC-controller

TC4420ESP32 DevKit 30 pin

Mikola Tesla-QCW-DRSSTC-controller bill of materials (BOM)

30 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
TC4420
U1, U2
1
ESP32 DevKit 30 pin
A1
1
KNOBS (potentiometers)
J1
1
FIRE
J2
1
AUTO
J3
1
E-STOP A
J4
1
SCREEN
J5
2
TX
J6, J7
1
E-STOP B
J8
1
+5V / GND
J9
3
100N
100n
C8, C10, C12
2
1u
C9, C11
3
4.7K
4.7k
R15, R16, R17
4
10K
10k
R18, R19, R21, R25
2
150
R20, R24
4
100
R22, R23, R26, R27

Mikola Tesla-QCW-DRSSTC-controller design files

The KiCad project lives in the arsinovgleb5-create/Mikola_Tesla-QCW-DRSSTC-controller repository on GitHub; these links point at the commit this page was built from.

Mikola Tesla-QCW-DRSSTC-controller: common questions

What microcontroller does the Mikola Tesla-QCW-DRSSTC-controller use?

The Mikola Tesla-QCW-DRSSTC-controller is built around the ESP32 DevKit 30 pin, from the ESP32 family.

How big is the Mikola Tesla-QCW-DRSSTC-controller PCB?

The Mikola Tesla-QCW-DRSSTC-controller measures 85 × 72 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mikola Tesla-QCW-DRSSTC-controller?

30 components, from 16 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Mikola Tesla-QCW-DRSSTC-controller design files?

From the arsinovgleb5-create/Mikola_Tesla-QCW-DRSSTC-controller repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Mikola Tesla-QCW-DRSSTC-controller design in my own project?

Yes, under the terms of its CC-BY-4.0 license, which arsinovgleb5-create chose for the repository.

Can I test firmware for the Mikola Tesla-QCW-DRSSTC-controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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