
Open-source KiCad boards
501 match “Ttl”Printed circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.
- 2 layers25.1 × 16.1 mm

- 2 layers64.8 × 32 mm

- 2 layers

- 2 layers79.8 × 129.5 mm

- 2 layers40.5 × 37.5 mm

UART TTL Flipper Zero
Bemmy-projects/UART-TTL-Flipper_Zero
TTL to RS232 Serial Adapter for the Flipper Zero
7 parts1 - 2 layers30.5 × 12.1 mm

TTLSerialOptoisolator
cellularmitosis/TTLSerialOptoisolator
A board which provides isolation for a TTL serial TX / RX pair.
9 partsMIT - 2 layers105.5 × 99.6 mm

- 2 layers40.1 × 19.8 mm

- 4 layers41.3 × 14 mm

Usb ttl-4p4c
cellularmitosis/usb-ttl-4p4c
An adapter to convert various USB-TTL adapters to a 4P4C connector.
4 partsMIT - 4 layers41.3 × 16.5 mm

Usb ttl-4p4c
cellularmitosis/usb-ttl-4p4c
An adapter to convert various USB-TTL adapters to a 4P4C connector.
4 partsMIT - 2 layers74 × 66.5 mm

- 2 layers45.1 × 48.5 mm

TTL SIREN
Gabouin/TTL-SIREN
TTL Based Police Siren A TTL logic circuit designed to mimic a police siren using an astable multivibrator. Blue and red LEDs alternate in a blinking pattern, with a custom PCB shaped like a siren light.
25 parts2MIT - 2 layers100 × 100 mm

- 2 layers33 × 133 mm

- 2 layers25 × 16 mm

- 2 layers40.6 × 22.9 mm

817-TTL Serial Optoisolator
cellularmitosis/817-TTL-Serial-Optoisolator
A board for isolating a TTL serial RX / TX pair using 817 (4-pin) optoisolators.
17 partsMIT - 2 layers45.5 × 42 mm

TTL to RS232 COn
vivek-swami/TTL-TO-RS232-CONVERTER-USING-MAX232-
A hardware serial communication interface that converts RS232 voltage levels to 5V TTL levels and vice versa using the MAX232CPE transceiver IC.
12 parts - 2 layers91.8 × 118.4 mm

ITC18-Breakout
kbellve/ITC18-Breakout
This circuit board allows the use of additional TTL Inputs and Outputs from the ITC18, available from Heka
23 parts - 2 layers71.5 × 24 mm

- 2 layers10 × 26 mm

- 2 layers

- 2 layers34 × 67 mm

- 2 layers33.5 × 17.1 mm

TTLtoCANforTOF
QDU-Robomaster/TTLtoCAN
电源部分通过 TPS54202 将输入电源降压至设计目标 5V,再由 ME6211 产生板上 3.3V。STM32 连接 ToF 的 UART,并通过 CAN 收发器接入总线。通信转换需要配套固件,当前仓库未提供固件及协议定义。
44 parts - 4 layers35 × 30 mm
