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4 layers55.4 × 126.1 mmBearcv-10hp main dualMCP4728 routed DRC pinremap revc, the printed circuit board in 3D

Bearcv-10hp main dualMCP4728 routed DRC pinremap revc

actuallysparky/bearamin

Bear-sized optical gesture instrument firmware.

Size
55.4 × 126.1 mm
Copper layers
4
Thickness
1.6 mm
Parts
128
Nets
76
Pads
364
Tracks, vias
1,472, 159
Pours
396
Routed
Yes
KiCad
KiCad 10.99 (file 20260831)
Created
10 Aug 2026
Updated
22 Oct 2026

Overview

Bearcv-10hp main dualMCP4728 routed DRC pinremap revc is an open-source printed circuit board by actuallysparky, from the actuallysparky/bearamin repository on GitHub, published under the MIT licence. It is a 4-layer board of 55.4 × 126.1 mm with 128 parts on 76 nets, routed with 1,472 tracks and 159 vias.

It is built around the SN74AHCT125PWRE4, CC0603KRX7R9BB104 and AVR-M1608C220KT2AB, with the BAT54S-7-F-79, RT0603BRD0710KL and RT0603BRE0714K3L among its other parts. Its parts include 4 ICs, 2 diodes and 2 fuses. It belongs with the ESP32 boards of this library.

Main components

12

README

bearamin/hw/Sensor-expander/README.md

Bearamin Sensor Expander

The canonical publication hardware is the v6 sidecar board:

  • bearamin-dpt-sensor-v6.kicad_pro
  • bearamin-dpt-sensor-v6.kicad_pcb

The PCB contains the XIAO ESP32-S3 Wi-Fi sidecar, ESP32-S3 MatrixCore, VL53L7CX 8x8 sensor connection, DPT link, and power components. It has no retired single-point sensor footprint or connection.

The current board is routed and KiCad reports no unconnected pads. Its current DRC report contains 14 warnings for local footprint overrides and silkscreen size/overlap, so review and resolve those items before fabrication.

The v6 release is board-authoritative and does not attach the older v5 schematic. The v5 board, its schematic, earlier revisions, autorouter intermediates, and generated fabrication exports remain local design history and are not part of the publication bundle.

Parts

128
QtyValueFootprintReferences
9100n X7RC_DAC_BIP_100N, C_DAC_UNI_100N, C_GATE_LDAC, C_I2C_3V3, C_I2C_5V, C_OP_BIP_N, C_OP_BIP_P, C_OP_UNI_N, C_OP_UNI_P
81M boot pulldownR_PD_PRES, R_PD_SPANK, R_PD_X_BI, R_PD_X_UNI, R_PD_Y_BI, R_PD_Y_UNI, R_PD_Z_BI, R_PD_Z_UNI
81k output isolationR_PRES, R_SPANK, R_X_BI, R_X_UNI, R_Y_BI, R_Y_UNI, R_Z_BI, R_Z_UNI
8AVR-M1608C220KT2AB 16V ESDD_PRES, D_SPANK, D_X_BI, D_X_UNI, D_Y_BI, D_Y_UNI, D_Z_BI, D_Z_UNI
8BAT54S dual-series rail clampDCL_PRES, DCL_SPANK, DCL_X_BI, DCL_X_UNI, DCL_Y_BI, DCL_Y_UNI, DCL_Z_BI, DCL_Z_UNI
8Thonkiconn PJ398SM / PJ301M-12Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHolesJ_PRES, J_SPANK, J_X_BI, J_X_UNI, J_Y_BI, J_Y_UNI, J_Z_BI, J_Z_UNI
610k 0.1%R_BIP_X_BIAS, R_BIP_Y_BIAS, R_BIP_Z_BIAS, R_UNI_X_GND, R_UNI_Y_GND, R_UNI_Z_GND
61kR_DAC_BIP_BIAS_SER, R_DAC_BIP_X_SER, R_DAC_BIP_Y_SER, R_DAC_BIP_Z_SER, R_RANGE, R_SLEW
4100kR_GATE_PRES_PD, R_GATE_SPANK_PD, R_LDAC_BIP_PU, R_LDAC_UNI_PU
41uC_9VIN, C_9VOUT, C_N9VIN, C_N9VOUT
44.7kR_I2C_SCL_3V3, R_I2C_SCL_5V, R_I2C_SDA_3V3, R_I2C_SDA_5V
314.3k 0.1%R_BIP_X_FB, R_BIP_Y_FB, R_BIP_Z_FB
32.21k 0.1%R_UNI_X_FB, R_UNI_Y_FB, R_UNI_Z_FB
2100nC_RANGE, C_SLEW
2100nF 50V X7RC_BUCK_BST, C_BUCK_VIN_HF
210u 10V X5RC_DAC_BIP_10U, C_DAC_UNI_10U
222uF 25V X5RC_BUCK_OUT1, C_BUCK_OUT2
2Bourns PTV09A-4020F-B103BearCV_Potentiometer:Potentiometer_Bourns_PTV09A-4F_L20mm_Horizontal_RearRV_RANGE, RV_SLEW
2SS14L 40V 1A SchottkyD1, D2
1+12TP_12P
1+8TP_8P
1-12TP_12N
1-8TP_8N
1100p C0GC_I2C_BIAS
110u 16V X5RC_BUCK
110uF 25V X5RC_BUCK_IN
11206L050/24WR 24V 500mA PTCF1
1200kR_I2C_EN
13V3TP_3V3
14.7uH 2.3AL_BUCK
15ATP_5A
15BTP_5B
1AP63205WU-7 5V 2AU_BUCK
1BIASTP_BIAS
1BRAWTP_BRAW
1Eurorack 2x5 shrouded rearIDC-Header_2x05_P2.54mm_VerticalJ_PWR
1GNDTP_GND1
1L78L08ACUTR +8V 100mAU4
1L79L08ACD13TR -8V 100mAU5
1LDBTP_LDB
1LDUTP_LDU
1MCP4728T-E/UN bipolar DACU_DAC_BIP
1MCP4728T-E/UN unipolar DACU_DAC_UNI
1OPA4171AIPWR bipolar scalingU_OP_BIP
1OPA4171AIPWR unipolar scalingU_OP_UNI
1PCA9306DCTR I2C translatorU_I2C_XLAT
1SCL3TP_SCL3
1SCL5TP_SCL5
1SDA3TP_SDA3
1SDA5TP_SDA5
1SMD1206B020TF/24 24V 200mA PTCF2
1SN74AHCT125PWR gate and LDAC level bufferU_GATE_LDAC
1URAWTP_URAW
1VL53L7CX 8x8 breakout placeholder - VERIFYU2
1Waveshare ESP32-S3-MatrixU1
1ferrite 600R@100MHzFB1

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Questions

How big is the Bearcv-10hp main dualMCP4728 routed DRC pinremap revc PCB?

It measures 55.4 × 126.1 mm and has 4 copper layers, 1.6 mm thick.

What parts does the Bearcv-10hp main dualMCP4728 routed DRC pinremap revc use?

128 parts, built around the SN74AHCT125PWRE4, CC0603KRX7R9BB104, AVR-M1608C220KT2AB and BAT54S-7-F-79. 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 Bearcv-10hp main dualMCP4728 routed DRC pinremap revc KiCad files?

From the actuallysparky/bearamin repository on GitHub, at the commit this page was made from: the board is bearamin-lite/hw/bearcv-10hp/bearcv-10hp-main_dualMCP4728_routed_DRC_pinremap_revc.kicad_pcb and its schematic bearamin-lite/hw/bearcv-10hp/bearcv-10hp-main_dualMCP4728_routed_DRC_pinremap_revc.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Bearcv-10hp main dualMCP4728 routed DRC pinremap revc design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).