2 layers
2 layers69 × 30 mm
Led seg 16f84a
dk2233/PicThrowDK1pic16f , pic18f projects
- Size
- 69 × 30 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 36
- Pads
- 80
- Tracks, vias
- 2, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Nov 2025
- Updated
- 16 Apr 2026
Overview
Led seg 16f84a is an open-source printed circuit board by dk2233, from the dk2233/PicThrowDK repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 69 × 30 mm with 23 parts on 36 nets, routed with 2 tracks and 0 vias.
It is built around the CC56-12EWA and BC337. Its parts include 13 resistors, 2 capacitors, 2 ICs, 1 transistor and 1 connector. It belongs with the PIC boards of this library.
Main components
2README
README.mdPicThrowDK
Different projects for pic16f or pic18f microntrollers It depends on PicLibDK repository
-
LED segments example -
for pic16f628a, also pic16f913
look to specific folders -
DS18B20 usage with one ds18b20
for pic16f913 with one or multiple sensors connected on same pin. -
DS18B20 with cheap pic16f913 System is capable of detecting id of each of the connected sensors and based on that communicate with them. Temperature is shown on the screen one after one sensors (second 1 is information abour normal or parasite power - 1 means normal)
Symbol shows that measurement of second connected sensor will be displayed
And is displayed
Symbol shows that measurement of 4th connected sensor will be displayed
And is displayed
-
LED segments example in 16f84a - small, old pic16f - not very useful, but I like it very much (emotional connection)
-
LCD alphanumeric type - based on Hitachi HD44780 or similar like KS0066.
Example of using CGRAM characters write.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 330 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R3, R4, R17, R18, R19, R20 |
| 4 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R8, R10, R11, R16 |
| 4 | BC337 | Package_TO_SOT_THT:TO-92_Inline | T1, T2, T3, T5 |
| 2 | 20p | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R6 |
| 1 | 20.0MHz | Crystal:Crystal_HC18-U_Vertical | Q1 |
| 1 | CC56-12EWA | Display_7Segment:CA56-12EWA | U1 |
| 1 | MTA06-156 | Connector_Molex:Molex_KK-254_AE-6410-06A_1x06_P2.54mm_Vertical | J1 |
| 1 | PIC16F84A-XXP | Package_DIP:DIP-18_W7.62mm | U3 |
More from dk2233/PicThrowDK
1Similar boards
- 2 layers54.6 × 71.8 mm
- 2 layers55 × 84.4 mm
- 4 layers65 × 45 mm
StopWatch
makingdevices/StopWatch
This project is a simple StopWatch for measuring times on different processes or activities.
55 parts5GPL-3.0 - 6 layers210 × 119 mm
Claculator Keypad
Robert-Mones/Claculator
A reverse Polish notation calculator with added features such as comparisons, branching, and custom recursive operators taken from the Clac project from the 15-122 course at Carnegie Mellon University.
202 parts5 - 2 layers40 × 65 mm
BytesCounter
makingdevices/Bytes-Counter
Bytes Counter is a Open Source Tally Counter HW project
36 parts4GPL-3.0 - 2 layers174.5 × 90.4 mm
Volante Maquinillo
Angelpele/F1-Steering-Wheel
F1 Functional Steering Wheel based on the ESP32
65 parts2 - 2 layers148 × 49 mm
- 2 layers69 × 79 mm
NTC
xuejun7777/Comprehensive-Design-and-Practice-Project-A---Digital-Thermometer-Based-on-NTC
综合设计与实践A项目-基于NTC的数字温度计
44 parts2
Questions
How big is the Led seg 16f84a PCB?
It measures 69 × 30 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Led seg 16f84a use?
23 parts, built around the CC56-12EWA and BC337. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Led seg 16f84a KiCad files?
From the dk2233/PicThrowDK repository on GitHub, at the commit this page was made from: the board is 16f84/led_example/led_seg_16f84a/led_seg_16f84a.kicad_pcb and its schematic 16f628/blink/leds_schematic/leds_schematic.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led seg 16f84a design in my own project?
Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).