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YY1705K1A0-ST7735S-breakout

ahmedbarakat207·YY1705K1A0-ST7735S-breakout

YY1705K1A0-ST7735S-breakout layout, top view — open source ESP32 board by ahmedbarakat207

About the YY1705K1A0-ST7735S-breakout

YY1705K1A0-ST7735S-breakout is an open source ESP32 PCB design by ahmedbarakat207, published on GitHub under the MIT license. It is a 2-layer board measuring 34 × 53 mm, with 7 components from 6 distinct parts.

Its main chip is the ESP32_HDR_7, from the ESP32 family. By type, the board carries 3 resistors, 2 connectors and 2 capacitors.

It belongs with the displays & leds and dev boards & breakouts designs in this gallery.

From the project

a PCB Breakout to Connect the YY1705K1A0 TFT 1.8 inch Display into Arduino/ESP GPIO

An open-source, 1-layer single-sided PCB breakout board and high-performance C++ driver for the YY1705K1A0 1.8-inch TFT LCD SPI display (ST7735S controller, 128×160 RGB).

- 100% Single-Sided (1-Layer F.Cu): Designed specifically for home etching (toner transfer / photoresist). Zero jumpers or bottom vias required. - Through-Hole Passives (no SMD soldering): R1, R2, R3, C1, C2 are all standard through-hole parts — solder them with any basic iron. The only SMD part is the J2 FPC ZIF connector (required by the display flex cable). - Zero DRC Violations: Optimized trace widths (0.35 mm signals…

YY1705K1A0-ST7735S-breakout bill of materials (BOM)

7 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ESP32_HDR_7
CONN_7PIN
Any
J1
1
54548-1271
FPC_12P_0.5mm
Molex
J2
1
UMT1A100MDD
10uF
Nichicon
C1
1
C315C104M5U5TA
100nF
Kemet
C2
1
CFR-25JB-52-22R
22R
Yageo
R1
2
CFR-25JB-52-10KL
10k
Yageo
R2, R3

YY1705K1A0-ST7735S-breakout design files

The KiCad project lives in the ahmedbarakat207/YY1705K1A0-ST7735S-breakout repository on GitHub; these links point at the commit this page was built from.

YY1705K1A0-ST7735S-breakout: common questions

What microcontroller does the YY1705K1A0-ST7735S-breakout use?

The YY1705K1A0-ST7735S-breakout is built around the ESP32_HDR_7, from the ESP32 family.

How big is the YY1705K1A0-ST7735S-breakout?

The YY1705K1A0-ST7735S-breakout measures 34 × 53 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the YY1705K1A0-ST7735S-breakout?

7 components, from 6 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 YY1705K1A0-ST7735S-breakout design files?

From the ahmedbarakat207/YY1705K1A0-ST7735S-breakout 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 YY1705K1A0-ST7735S-breakout design in my own project?

Yes, under the terms of its MIT license, which ahmedbarakat207 chose for the repository.

Can I test firmware for the YY1705K1A0-ST7735S-breakout 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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