
RefleXion Grid
TweetyDaBird/RefleXion-Grid
Minimal footprint Split Ortho Keyboard with RP2040 MCU and USB link

Ortho Split Keyboard
RefleXion X65 is an open-source printed circuit board by TweetyDaBird, from the TweetyDaBird/RefleXion-65 repository on GitHub. It is a 2-layer board of 133.4 × 117.1 mm with 176 parts on 152 nets, routed with 2,284 tracks and 471 vias.
It is built around the RP2040, SN74LV1T34DBV and W25Q32JVUUIQ, with the SRV05-4, SPX3819M5-L-3-3/TR and 1N4148W among its other parts. Its parts include 80 diodes, 36 switches, 16 capacitors, 12 resistors and 6 ICs. It belongs with the keyboards and input boards and the RP2040 boards of this library.
Ortho Split Keyboard
This is a joint project with concept by 'The Reflex' (Pedro Quaresma), and design by 'TweetyDaBird' (Markus Knutsson).
| Qty | Value | Footprint | References |
|---|---|---|---|
| 36 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +20 |
| 36 | SW_Push | Keyboard Switches:SW_MX_HotSwap_Reversible | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +20 |
| 33 | SK6812MINI-E | Keyboard RGB:MX_SK6812MINI-E_REVERSIBLE | LED1, LED2, LED10, LED11, LED12, LED13, LED14, LED15, LED16, LED17, LED18, LED19, LED20, LED21, LED22, LED23 +17 |
| 11 | SK6812MINI-E | Keyboard RGB:MX_SK6812MINI-E_REVERSIBLE_special | LED34, LED35, LED36, LED37, LED38, LED39, LED40, LED41, LED42, LED43, LED44 |
| 10 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C8, C9, C10, C11, C12, C14, C15, C18 |
| 4 | 1uF | Capacitor_SMD:C_0402_1005Metric | C7, C13, C16, C17 |
| 4 | Spacer_PCB | Keyboard Common:Spacer PCB hole | H1, H2, H3, H4 |
| 3 | 10K | Resistor_SMD:R_0402_1005Metric | R12, R13, R18 |
| 3 | 68K | Resistor_SMD:R_0402_1005Metric | R9, R10, R11 |
| 3 | BLM18SG700TZ1D | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | FB3, FB4, FB5 |
| 2 | 1K | Resistor_SMD:R_0402_1005Metric | R14, R15 |
| 2 | 27R | Resistor_SMD:R_0402_1005Metric | R16, R17 |
| 2 | 30pF | Capacitor_SMD:C_0402_1005Metric | C19, C20 |
| 2 | 5.1K | Resistor_SMD:R_0402_1005Metric | R7, R8 |
| 2 | CC-BY-SA-4.0 | Logotypes:CC_BY_SA_40 | Logo3, Logo6 |
| 2 | CE_Logo | Logotypes:CE | Logo1, Logo2 |
| 2 | QMK_Logo | Logotypes:Powered_by_QMK | Logo4, Logo4 |
| 2 | RoHS_Logo | Logotypes:RoHs | Logo7, Logo8 |
| 2 | SRV05-4 | Package_TO_SOT_SMD:SOT-23-6 | U2, U6 |
| 2 | USB_C_Receptacle_USB2.0 | Keyboard Common:Molex-216990_GCT-USB45xx_HRO-TYPE-C-31-M-13x-PiMicro | USB1, USB2 |
| 2 | YTS-A002 | Keyboard Common:YTS-A002 | BOOT1, RES1 |
| 1 | 1N5819WS | Diode_SMD:D_SOD-323F | ZD1 |
| 1 | CF06V5TR50 | Resistor_SMD:R_0603_1608Metric | F1 |
| 1 | Jumper_3_Open | Keyboard Common:SolderJumper-3_open_mini | JP17 |
| 1 | OLED_4pin | Keyboard Common:SSD1306-0.91-OLED-4pin-128x32 doublesided | OLED1 |
| 1 | RP2040 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP3.2x3.2mm_ThermalVias | U8 |
| 1 | Rotary_Encoder_Click | Keyboard Encoders:Encoder_Alps_EC11E_Small | ENC1 |
| 1 | SN74LV1T34DBV | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | SPX3819M5-L-3-3/TR | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | Stabilizer_2u_MX | Keyboard Stabilizer:Stabilizer_Cherry_MX_2.00u | ST1 |
| 1 | TXM12M0004252LBCEO00T | Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm | Y1 |
| 1 | W25Q32JVUUIQ | Keyboard Common:USON-8_4x3mm_P0.8mm | U7 |
It measures 133.4 × 117.1 mm and has 2 copper layers, 1.6 mm thick.
176 parts, built around the RP2040, SN74LV1T34DBV, W25Q32JVUUIQ and SRV05-4. 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 TweetyDaBird/RefleXion-65 repository on GitHub, at the commit this page was made from: the board is RefleXion X65/PCB v1.20/RefleXion X65.kicad_pcb and its schematic RefleXion X65/Front Plate - Blank/X65 Front Plate.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask TweetyDaBird before reusing the design.

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