
PG attiny404
fabiansteiner/OpenValve
3D-printable pinch valve for irrigation and sensor-driven liquid control.

The ATTINY804-SSN is a microcontroller made by Microchip Technology in a SOIC-14 package with 14 pins. -40℃~+105℃ 1.8V~5.5V 10bit 12 128Byte 20MHz 512Byte 8 Bit 8KB AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_ATtiny:ATtiny804-SS, from KiCad's library) and its footprint (Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, from KiCad's library), ready for a KiCad board. 9 are in stock at JLCPCB (part C2053283). 4 open-source boards in 4 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | VCC | Power in |
| 2 | PA4 | Input/output |
| 3 | PA5 | Input/output |
| 4 | PA6 | Input/output |
| 5 | PA7 | Input/output |
| 6 | PB3 | Input/output |
| 7 | PB2 | Input/output |
| 8 | PB1 | Input/output |
| 9 | PB0 | Input/output |
| 10 | RESET/PA0 | Input/output |
| 11 | PA1 | Input/output |
| 12 | PA2 | Input/output |
| 13 | PA3 | Input/output |
| 14 | GND | Power in |

fabiansteiner/OpenValve
3D-printable pinch valve for irrigation and sensor-driven liquid control.


GadgetReboot/8ChLED
8 Addressable LEDs show logic input high/low states for easy probing

hackeriet/imponator
The MCU has a 100nF capacitor between VCC and GND. This is quite standard for MCUs and sensors, but to be sure, check the datasheet.
<iframe src="https://pcbkit.io/embed/parts/microchip/ATTINY804-SSN" title="ATTINY804-SSN in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/ATTINY804-SSN.jpg" alt="ATTINY804-SSN" width="1200" height="900">[](https://pcbkit.io/parts/microchip/ATTINY804-SSN)Yes. The symbol is MCU_Microchip_ATtiny:ATtiny804-SS and the footprint Package_SO:SOIC-14_3.9x8.7mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
SOIC-14, with 14 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2053283, with 9 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the PY32F002BD15S6TU by PUYA, the PIC16F1503-I/SL by Microchip Technology, the PIC16F1824-I/SL by Microchip Technology and the PIC16F676-I/SL by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
4 boards in 4 repositories on GitHub; the most starred are listed on this page, with their KiCad files.