
Board43
smartbank-inc/Board43
Board43 is an RP2350A-based microcontroller development board. Flash PicoRuby or your favorite firmware and start hacking.

Circle clock using 276pcs of WS2812C-2020 and an M5Atom
Bf-025 is an open-source printed circuit board by botanicfields, from the botanicfields/PCB-RGB-LED-276-M5Atom repository on GitHub, published under the CC0-1.0 licence. It is a 2-layer board of 100 × 100 mm with 578 parts on 286 nets, routed with 3,349 tracks and 652 vias.
It is built around the WS2812C-2020-V1 and B5819W. Its parts include 277 capacitors, 277 diodes, 3 connectors, 2 resistors and 1 IC. It belongs with the lEDs and displays boards and the ESP32 boards of this library.
Circle clock using 276pcs of WS2812C-2020 and an M5Atom
https://github.com/botanicfields/PCB-RGB-LED-276-M5Atom/blob/main/bf-025_doc.pdf
GROVE コネクタ経由でリアルタイムクロック (RTC) 基板を増設できます。スペーサを用いて 2 階建てにできます。
置時計のデモを作成しました。RTC に対応しました。RTC がなくても動作します。以下の機能があります。
時刻表示中のデモには以下があります。
動作中 M5Atom のボタンで以下を操作します。切替の状況はシリアルモニタで確認できます。
| 長押し時間 | 表示 | 効果 |
|---|---|---|
| - | Pale | カラーパレットを切替 |
| >1 秒 | Next | デモを切替、【クロックデモ】デモ内容を切替(文字色、フォント) |
| >2 秒 | Exit | デモを切替 |
| >3 秒 | Temp | 色温度を切替 |
| >4 秒 | Corr | 色補正を切替 |
| >5 秒 | Scal | 【パーリンノイズデモ】スケール (x, y) を切替 |
| >6 秒 | Peri | 【パーリンノイズデモ】周期 (z) を切替 |
| >7 秒 | Null | ボタン操作を取消 |
カウントダウンタイマー動作中、M5Atom のボタンで以下を操作します。
| 長押し時間 | 表示 | 状態 | 効果 |
|---|---|---|---|
| - | - | カウントダウン停止中 | カウントダウン開始 |
| - | - | カウントダウン中 | クイズモードに移行、賞金額を表示 |
| >1 秒 | Stop | - | カウントダウンを中止、初期値に戻す |
| >2 秒 | Time | - | カウントダウンを中止、初期値を変更 |
| >3 秒 | Pale | - | カラーパレットを変更 |
| >4 秒 | Exit | - | 終了、デモを切替 |
| >5 秒 | Null | - | ボタン操作を取消 |
"Circle LED Clock by M5Atom and FastLED" in Japanese
M5Atom と FastLED で 円形 LED 時計を作る
Clock Demo on BF-025: RGB-LED 276 for M5Atom
ColorPalette an example from FastLED on BF-025: RGB-LED 276 for M5Atom
DemoReel100 an example from FastLED on BF-025 RGB-LED 276 for M5Atom
Pacifica an example from FastLED on BF-025 RGB-LED 276 for M5Atom
Pride2015 an example from FastLED on BF-025: RGB-LED 276 for M5Atom
TwinkleFox an exmaple from FastLED on BF025: RGB-LED 276 for M5Atom
JLCPCB official user group facebook
| Qty | Value | Footprint | References |
|---|---|---|---|
| 276 | 100n | Capacitor_SMD:C_0603_1608Metric | C1001, C1002, C1003, C1004, C1005, C1006, C1007, C1008, C1009, C1010, C1011, C1012, C1101, C1102, C1103, C1104 +260 |
| 276 | WS2812C-2020 | bf:BF@WS2812C-2020 | D1001, D1002, D1003, D1004, D1005, D1006, D1007, D1008, D1009, D1010, D1011, D1012, D1101, D1102, D1103, D1104 +260 |
| 3 | , , | ||
| 2 | 10k | Resistor_SMD:R_0603_1608Metric | R101, R102 |
| 1 | 1000u | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C101 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D101 |
| 1 | Barrel_Jack_Switch | bf:BF@BarrelJack_Horizontal | J101 |
| 1 | I2C | OPL_Connector:HW4-2.0 | J102 |
| 1 | LOGO | bf:BF@logo4 | G*** |
| 1 | M5Atom | bf:BF@M5Atom | U101 |
| 1 | UART | OPL_Connector:HW4-2.0 | J103 |
The 564 most common of 578 parts.

smartbank-inc/Board43
Board43 is an RP2350A-based microcontroller development board. Flash PicoRuby or your favorite firmware and start hacking.





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It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
578 parts, built around the WS2812C-2020-V1 and B5819W. 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.
From the botanicfields/PCB-RGB-LED-276-M5Atom repository on GitHub, at the commit this page was made from: the board is BF@kicad/bf-025.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the CC0-1.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).