UsbSourceMeasure
About the UsbSourceMeasure PCB
UsbSourceMeasure is an open source ESP32 PCB design by BerkeleyHCI, published on GitHub under the BSD-3-Clause license. It is a 4-layer board measuring 168 × 52 mm, with 310 components from 310 distinct parts.
Its main chip is the mcu.ic, from the ESP32 family. Other key parts include the vusb_sense.ic, reg_v5.ic, reg_3v3.ic, reg_v12.ic and convin_sense.ic. By type, the board carries 111 capacitors, 84 resistors, 41 ICs, 20 diodes, 15 connectors and 14 transistors.
From the project
A Python-based hardware description language for PCBs for higher-level (block-diagram / system-architecture level) PCB design through libraries of directly reusable subcircuit generators.
First unit: - J1: Molex 217179-0001 - J2: GCT USB4105-GF-A - High side transistor: ~NPN PHPT60410NYX~, NMOS SIR172ADP-T1-GE3 - Low side transistor: ~PNP PHPT60410PYX (exploded at ~3A)~, PMOS SQJ433EP-T1_GE3
Second unit: - D1, D2: white LEDs - U15, U16: CPC1106N - U20, U14, U18 (HV opamp): MC33171DT - U4, U6, U8, U10, U12: MCP6001T-I/OT
Main components on the UsbSourceMeasure
vusb_sense.icreg_v5.icreg_3v3.icreg_v12.icconvin_sense.icconv.buck_sw.driver.icconv.boost_sw.driver.icreg_analog.icreg_vref.icreg_vcontrol.icreg_vcontroln.iccontrol.comp_source.iccontrol.comp_sink.iccontrol.off_sw.iccontrol.driver.high_gate.iccontrol.driver.low_gate.iccontrol.isense.ranges[0].sense_sw.iccontrol.isense.ranges[0].pwr_sw.iccontrol.isense.ranges[1].sense_sw.iccontrol.isense.ranges[1].pwr_sw.iccontrol.isense.ranges[2].sense_sw.iccontrol.isense.ranges[2].pwr_sw.iccontrol.vmeas.iccontrol.imeas.ic
UsbSourceMeasure bill of materials (BOM)
310 components, 310 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | vusb_sense.ic | SOT-23-8 | U1 |
| 1 | reg_v5.ic | SOT-23-6 | U2 |
| 1 | reg_3v3.ic | SOT-23-6 | U3 |
| 1 | reg_v12.ic | SOT-23-5 | U4 |
| 1 | convin_sense.ic | SOT-23-8 | U5 |
| 1 | conv.buck_sw.driver.ic | SOIC-8_3.9x4.9mm_P1.27mm | U6 |
| 1 | conv.boost_sw.driver.ic | SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | reg_analog.ic | SOT-23-5 | U8 |
| 1 | reg_vref.ic | SOT-23 | U9 |
| 1 | reg_vcontrol.ic | SOT-23-5 | U10 |
| 1 | reg_vcontroln.ic | SOT-23-6 | U11 |
| 1 | control.comp_source.ic | SOT-353_SC-70-5 | U12 |
| 1 | control.comp_sink.ic | SOT-353_SC-70-5 | U13 |
| 1 | control.off_sw.ic | SOT-363_SC-70-6 | U14 |
| 1 | control.driver.high_gate.ic | SOT-23-6 | U15 |
| 1 | control.driver.low_gate.ic | SOT-23-6 | U16 |
| 1 | control.isense.ranges[0].sense_sw.ic | SOT-23-6 | U17 |
| 1 | control.isense.ranges[0].pwr_sw.ic | SMDIP-6_W7.62mm | U18 |
| 1 | control.isense.ranges[1].sense_sw.ic | SOT-23-6 | U19 |
| 1 | control.isense.ranges[1].pwr_sw.ic | SO-4_4.4x3.6mm_P2.54mm | U20 |
Show 290 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | control.isense.ranges[2].sense_sw.ic | SOT-23-6 | U21 |
| 1 | control.isense.ranges[2].pwr_sw.ic | SO-4_4.4x3.6mm_P2.54mm | U22 |
| 1 | control.vmeas.ic | SOIC-8_3.9x4.9mm_P1.27mm | U23 |
| 1 | control.imeas.ic | SOIC-8_3.9x4.9mm_P1.27mm | U24 |
| 1 | pd.ic | WQFN-14-1EP_2.5x2.5mm_P0.5mm_EP1.45x1.45mm | U25 |
| 1 | mcu.ic | ESP32-S3-WROOM-1 | U26 |
| 1 | usb_esd | SOT-23 | U27 |
| 1 | oled.lcd | Lcd_Er_Oled022_1_Outline | U28 |
| 1 | ioe_ctl.ic | TSSOP-16_4.4x5mm_P0.65mm | U29 |
| 1 | conv_ovp.comp.ic | SOT-353_SC-70-5 | U30 |
| 1 | conv_latch.ic | VSSOP-8_2.3x2mm_P0.5mm | U31 |
| 1 | pass_temp.ic | SOT-563 | U32 |
| 1 | conv_temp.ic | SOT-563 | U33 |
| 1 | ioe_ui.ic | TSSOP-16_4.4x5mm_P0.65mm | U34 |
| 1 | spk_drv.ic | QFN-16-1EP_3x3mm_P0.5mm_EP1.45x1.45mm | U36 |
| 1 | dac.ic | MSOP-10_3x3mm_P0.5mm | U37 |
| 1 | adc.ic | TSSOP-20_4.4x6.5mm_P0.65mm | U38 |
| 1 | vimeas_amps.ic | SOIC-8_3.9x4.9mm_P1.27mm | U39 |
| 1 | cv_amps.ic | SOIC-8_3.9x4.9mm_P1.27mm | U40 |
| 1 | ci_amps.ic | SOIC-8_3.9x4.9mm_P1.27mm | U41 |
| 1 | cintref_amps.ic | SOIC-8_3.9x4.9mm_P1.27mm | U42 |
| 1 | ramp.drv | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q1 |
| 1 | ramp.ctl_fet | SOT-23 | Q2 |
| 1 | conv.buck_sw.low_fet | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q3 |
| 1 | conv.buck_sw.high_fet | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q4 |
| 1 | conv.boost_sw.low_fet | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q5 |
| 1 | conv.boost_sw.high_fet | PQFN-8-EP_6x5mm_P1.27mm_Generic | Q6 |
| 1 | control.driver.high_fet | TO-220-3_Horizontal_TabUp | Q7 |
| 1 | control.driver.low_fet | TO-220-3_Horizontal_TabUp | Q8 |
| 1 | control.vclamp.Q1 | SOT-23 | Q9 |
| 1 | control.vclamp.Q2 | SOT-23 | Q10 |
| 1 | control.iclamp.Q1 | SOT-23 | Q11 |
| 1 | control.iclamp.Q2 | SOT-23 | Q12 |
| 1 | fan_drv.pre | SOT-23 | Q13 |
| 1 | fan_drv.drv | SOT-23 | Q14 |
| 1 | usb | USB_C_Receptacle_XKB_U262-16XN-4BVC11 | J1 |
| 1 | tp_err | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J2 |
| 1 | tp_int | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J3 |
| 1 | mcu.prog | Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J4 |
| 1 | oled.device | TE_2-1734839-4_1x24-1MP_P0.5mm_Horizontal | J5 |
| 1 | qwiic | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J6 |
| 1 | dutio | PinHeader_1x03_P2.54mm_Horizontal | J7 |
| 1 | fan | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J8 |
| 1 | spk | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J9 |
| 1 | tp_vcen | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J10 |
| 1 | tp_mv | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J11 |
| 1 | tp_mi | U.FL_Hirose_U.FL-R-SMT-1_Vertical | J12 |
| 1 | outn | CalTest_CT3151 | J13 |
| 1 | outp | CalTest_CT3151 | J14 |
| 1 | outd | PinHeader_1x02_P2.54mm_Horizontal | J15 |
| 1 | fuse_vusb | Fuseholder_Littelfuse_Nano2_154x | F1 |
| 1 | jlc_th.th1 | JlcToolingHole_1.152mm | H1 |
| 1 | jlc_th.th2 | JlcToolingHole_1.152mm | H2 |
| 1 | jlc_th.th3 | JlcToolingHole_1.152mm | H3 |
| 1 | enc | RotaryEncoder_Bourns_PEC11S | SW1 |
| 1 | dir | DirectionSwitch_Alps_SKRH | SW2 |
| 1 | gnd | TestPoint_TE_RCT_0805 | TP1 |
| 1 | vusb_ramp | TestPoint_TE_RCT_0805 | TP2 |
| 1 | v5 | TestPoint_TE_RCT_0805 | TP3 |
| 1 | v3v3 | TestPoint_TE_RCT_0805 | TP4 |
| 1 | vconv | TestPoint_TE_RCT_0805 | TP5 |
| 1 | va | TestPoint_TE_RCT_0805 | TP6 |
| 1 | vref | TestPoint_TE_RCT_0805 | TP7 |
| 1 | vc+ | TestPoint_TE_RCT_0805 | TP8 |
| 1 | vc- | TestPoint_TE_RCT_0805 | TP9 |
| 1 | i2c.scl | TestPoint_TE_RCT_0805 | TP10 |
| 1 | i2c.sda | TestPoint_TE_RCT_0805 | TP11 |
| 1 | prot_vusb | D_SMA | D1 |
| 1 | prot_3v3 | D_SMA | D2 |
| 1 | reg_v12.rect | D_SOD-323 | D3 |
| 1 | conv.buck_sw.driver.boot | D_SOD-323 | D4 |
| 1 | conv.boost_sw.driver.boot | D_SOD-323 | D5 |
| 1 | prot_conv | D_SMA | D6 |
| 1 | reg_vcontrol.rect | D_SOD-323 | D7 |
| 1 | control.err_source.diode | D_SOD-323 | D8 |
| 1 | control.err_sink.diode | D_SOD-323 | D9 |
| 1 | control.driver.clamp1 | D_SOD-323 | D10 |
| 1 | control.driver.clamp2 | D_SOD-323 | D11 |
| 1 | control.tvs_p | D_SMA | D12 |
| 1 | control.tvs_n | D_SMA | D13 |
| 1 | led.package | LED_0603_1608Metric | D14 |
| 1 | rgbs.led[0].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D15 |
| 1 | rgbs.led[1].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D16 |
| 1 | rgbs.led[2].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D17 |
| 1 | rgbs.led[3].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D18 |
| 1 | rgbs.led[4].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D19 |
| 1 | rgbs.led[5].device | LED_WS2812B-2020_PLCC4_2.0x2.0mm | D20 |
| 1 | filt_vusb | L_0805_2012Metric | FB1 |
| 1 | filt_vcontroln | L_0603_1608Metric | FB2 |
| 1 | dac_ferrite | L_0603_1608Metric | FB3 |
| 1 | reg_v5.power_path.inductor | L_Taiyo-Yuden_NR-40xx | L1 |
| 1 | reg_3v3.power_path.inductor | L_Taiyo-Yuden_NR-40xx | L2 |
| 1 | reg_v12.power_path.inductor | L_0805_2012Metric | L3 |
| 1 | conv.power_path.inductor | L_Bourns_SRP1245A | L4 |
| 1 | reg_vcontrol.power_path.inductor | L_0805_2012Metric | L5 |
| 1 | vusb_sense.vs_cap | C_0603_1608Metric | C1 |
| 1 | ramp.cap_gd | C_0603_1608Metric | C2 |
| 1 | ramp.cap_gs | C_0805_2012Metric | C3 |
| 1 | cap_conv | CP_Elec_6.3x7.7 | C4 |
| 1 | reg_v5.hf_in_cap | C_0603_1608Metric | C5 |
| 1 | reg_v5.boot_cap | C_0603_1608Metric | C6 |
| 1 | reg_v5.power_path.in_cap | C_0805_2012Metric | C7 |
| 1 | reg_v5.power_path.out_cap | C_0805_2012Metric | C8 |
| 1 | reg_3v3.hf_in_cap | C_0603_1608Metric | C9 |
| 1 | reg_3v3.boot_cap | C_0603_1608Metric | C10 |
| 1 | reg_3v3.power_path.in_cap.c[0] | C_1206_3216Metric | C11 |
| 1 | reg_3v3.power_path.in_cap.c[1] | C_1206_3216Metric | C12 |
| 1 | reg_3v3.power_path.out_cap | C_0805_2012Metric | C13 |
| 1 | reg_v12.power_path.in_cap | C_0805_2012Metric | C14 |
| 1 | reg_v12.power_path.out_cap | C_0603_1608Metric | C15 |
| 1 | reg_v12.cf | C_0603_1608Metric | C16 |
| 1 | convin_sense.vs_cap | C_0603_1608Metric | C17 |
| 1 | conv.power_path.in_cap.c[0] | C_1206_3216Metric | C18 |
| 1 | conv.power_path.in_cap.c[1] | C_1206_3216Metric | C19 |
| 1 | conv.power_path.in_cap.c[2] | C_1206_3216Metric | C20 |
| 1 | conv.power_path.in_cap.c[3] | C_1206_3216Metric | C21 |
| 1 | conv.power_path.in_cap.c[4] | C_1206_3216Metric | C22 |
| 1 | conv.power_path.in_cap.c[5] | C_1206_3216Metric | C23 |
| 1 | conv.power_path.in_cap.c[6] | C_1206_3216Metric | C24 |
| 1 | conv.power_path.out_cap.c[0] | C_1206_3216Metric | C25 |
| 1 | conv.power_path.out_cap.c[1] | C_1206_3216Metric | C26 |
| 1 | conv.power_path.out_cap.c[2] | C_1206_3216Metric | C27 |
| 1 | conv.power_path.out_cap.c[3] | C_1206_3216Metric | C28 |
| 1 | conv.power_path.out_cap.c[4] | C_1206_3216Metric | C29 |
| 1 | conv.power_path.out_cap.c[5] | C_1206_3216Metric | C30 |
| 1 | conv.power_path.out_cap.c[6] | C_1206_3216Metric | C31 |
| 1 | conv.power_path.out_cap.c[7] | C_1206_3216Metric | C32 |
| 1 | conv.buck_sw.driver.cap | C_0603_1608Metric | C33 |
| 1 | conv.buck_sw.driver.high_cap | C_0603_1608Metric | C34 |
| 1 | conv.boost_sw.driver.cap | C_0603_1608Metric | C35 |
| 1 | conv.boost_sw.driver.high_cap | C_0603_1608Metric | C36 |
| 1 | reg_analog.in_cap | C_0603_1608Metric | C37 |
| 1 | reg_analog.out_cap | C_0805_2012Metric | C38 |
| 1 | reg_vref.in_cap | C_0603_1608Metric | C39 |
| 1 | ref_rc.c | C_0603_1608Metric | C40 |
| 1 | reg_vcontrol.power_path.in_cap | C_0603_1608Metric | C41 |
| 1 | reg_vcontrol.power_path.out_cap | C_0805_2012Metric | C42 |
| 1 | reg_vcontrol.cf | C_0603_1608Metric | C43 |
| 1 | reg_vcontroln.cf | C_0805_2012Metric | C44 |
| 1 | reg_vcontroln.cout | C_1206_3216Metric | C45 |
| 1 | control.err_volt.cin | C_0603_1608Metric | C46 |
| 1 | control.err_source.cin | C_0603_1608Metric | C47 |
| 1 | control.err_sink.cin | C_0603_1608Metric | C48 |
| 1 | control.comp_source.vdd_cap | C_0603_1608Metric | C49 |
| 1 | control.comp_sink.vdd_cap | C_0603_1608Metric | C50 |
| 1 | control.off_sw.vdd_cap | C_0603_1608Metric | C51 |
| 1 | control.int.c | C_0603_1608Metric | C52 |
| 1 | control.driver.high_gate.vdd_cap | C_0805_2012Metric | C53 |
| 1 | control.driver.low_gate.vdd_cap | C_0805_2012Metric | C54 |
| 1 | control.driver.cap_in1 | CP_Elec_6.3x7.7 | C55 |
| 1 | control.driver.cap_in2 | C_0805_2012Metric | C56 |
| 1 | control.driver.cap_in3 | C_0603_1608Metric | C57 |
| 1 | control.cdiv | C_0603_1608Metric | C58 |
| 1 | control.isense.ranges[0].sense_sw.vdd_cap | C_0805_2012Metric | C59 |
| 1 | control.isense.ranges[1].sense_sw.vdd_cap | C_0805_2012Metric | C60 |
| 1 | control.isense.ranges[2].sense_sw.vdd_cap | C_0805_2012Metric | C61 |
| 1 | control.ifilt.c | C_0603_1608Metric | C62 |
| 1 | control.vmeas.vdd_cap | C_0805_2012Metric | C63 |
| 1 | control.imeas.vdd_cap | C_0805_2012Metric | C64 |
| 1 | control.snub_c | C_0603_1608Metric | C65 |
| 1 | pd.vdd_cap[0] | C_0603_1608Metric | C66 |
| 1 | pd.vdd_cap[1] | C_0805_2012Metric | C67 |
| 1 | mcu.vcc_cap0 | C_1206_3216Metric | C68 |
| 1 | mcu.vcc_cap1 | C_0603_1608Metric | C69 |
| 1 | mcu.en_pull.c | C_0603_1608Metric | C70 |
| 1 | oled.vcomh_cap | C_1206_3216Metric | C71 |
| 1 | oled.vdd_cap1 | C_0603_1608Metric | C72 |
| 1 | oled.vdd_cap2 | C_0805_2012Metric | C73 |
| 1 | oled.vcc_cap1 | C_0603_1608Metric | C74 |
| 1 | oled.vcc_cap2 | C_0805_2012Metric | C75 |
| 1 | oled_rc.c | C_0603_1608Metric | C76 |
| 1 | ioe_ctl.vdd_cap | C_0603_1608Metric | C77 |
| 1 | buck_rc.c | C_0603_1608Metric | C78 |
| 1 | boost_rc.c | C_0603_1608Metric | C79 |
| 1 | conv_ovp.comp.vdd_cap | C_0603_1608Metric | C80 |
| 1 | conv_latch.vdd_cap | C_0603_1608Metric | C81 |
| 1 | pass_temp.vdd_cap | C_0603_1608Metric | C82 |
| 1 | conv_temp.vdd_cap | C_0603_1608Metric | C83 |
| 1 | ioe_ui.vdd_cap | C_0603_1608Metric | C84 |
| 1 | rgbs.led[0].cap | C_0603_1608Metric | C85 |
| 1 | rgbs.led[1].cap | C_0603_1608Metric | C86 |
| 1 | rgbs.led[2].cap | C_0603_1608Metric | C87 |
| 1 | rgbs.led[3].cap | C_0603_1608Metric | C88 |
| 1 | rgbs.led[4].cap | C_0603_1608Metric | C89 |
| 1 | rgbs.led[5].cap | C_0603_1608Metric | C90 |
| 1 | fan_cap | C_0603_1608Metric | C91 |
| 1 | spk_drv.pwr_cap0 | C_0603_1608Metric | C92 |
| 1 | spk_drv.pwr_cap1 | C_0805_2012Metric | C93 |
| 1 | dac.vdd_cap[0] | C_0603_1608Metric | C94 |
| 1 | dac.vdd_cap[1] | C_0805_2012Metric | C95 |
| 1 | dac.out_cap[0] | C_0603_1608Metric | C96 |
| 1 | dac.out_cap[1] | C_0603_1608Metric | C97 |
| 1 | dac.out_cap[2] | C_0603_1608Metric | C98 |
| 1 | dac.out_cap[3] | C_0603_1608Metric | C99 |
| 1 | adc.avdd_cap_0 | C_0603_1608Metric | C100 |
| 1 | adc.avdd_cap_1 | C_0603_1608Metric | C101 |
| 1 | adc.dvdd_cap_0 | C_0603_1608Metric | C102 |
| 1 | adc.dvdd_cap_1 | C_0603_1608Metric | C103 |
| 1 | adc.vref_cap | C_0805_2012Metric | C104 |
| 1 | vcen_rc.c | C_0603_1608Metric | C105 |
| 1 | mv_rc.c | C_0603_1608Metric | C106 |
| 1 | mi_rc.c | C_0603_1608Metric | C107 |
| 1 | vimeas_amps.vdd_cap | C_0805_2012Metric | C108 |
| 1 | cv_amps.vdd_cap | C_0603_1608Metric | C109 |
| 1 | ci_amps.vdd_cap | C_0603_1608Metric | C110 |
| 1 | cintref_amps.vdd_cap | C_0603_1608Metric | C111 |
| 1 | vusb_sense.Rs | R_1206_3216Metric | R1 |
| 1 | ramp.div.top_res | R_0603_1608Metric | R2 |
| 1 | ramp.div.bottom_res | R_0603_1608Metric | R3 |
| 1 | reg_v5.fb.top_res | R_0603_1608Metric | R4 |
| 1 | reg_v5.fb.bottom_res | R_0603_1608Metric | R5 |
| 1 | reg_v5.en_res | R_0603_1608Metric | R6 |
| 1 | reg_3v3.fb.top_res | R_0603_1608Metric | R7 |
| 1 | reg_3v3.fb.bottom_res | R_0603_1608Metric | R8 |
| 1 | reg_3v3.en_res | R_0603_1608Metric | R9 |
| 1 | reg_v12.fb.top_res | R_0603_1608Metric | R10 |
| 1 | reg_v12.fb.bottom_res | R_0603_1608Metric | R11 |
| 1 | convin_sense.Rs | R_1206_3216Metric | R12 |
| 1 | conv.buck_sw.low_gate_res | R_0603_1608Metric | R13 |
| 1 | conv.buck_sw.high_gate_res | R_0603_1608Metric | R14 |
| 1 | conv.boost_sw.low_gate_res | R_0603_1608Metric | R15 |
| 1 | conv.boost_sw.high_gate_res | R_0603_1608Metric | R16 |
| 1 | ref_div.top_res | R_0603_1608Metric | R17 |
| 1 | ref_div.bottom_res | R_0603_1608Metric | R18 |
| 1 | ref_rc.r | R_0603_1608Metric | R19 |
| 1 | reg_vcontrol.fb.top_res | R_0603_1608Metric | R20 |
| 1 | reg_vcontrol.fb.bottom_res | R_0603_1608Metric | R21 |
| 1 | control.dmeas.r1 | R_0603_1608Metric | R22 |
| 1 | control.dmeas.r2 | R_0603_1608Metric | R23 |
| 1 | control.dmeas.rf | R_0603_1608Metric | R24 |
| 1 | control.dmeas.rg | R_0603_1608Metric | R25 |
| 1 | control.err_volt.rtop | R_0603_1608Metric | R26 |
| 1 | control.err_volt.rbot | R_0603_1608Metric | R27 |
| 1 | control.err_volt.rout | R_0603_1608Metric | R28 |
| 1 | control.err_volt.rfine | R_0603_1608Metric | R29 |
| 1 | control.err_source.rtop | R_0603_1608Metric | R30 |
| 1 | control.err_source.rbot | R_0603_1608Metric | R31 |
| 1 | control.err_sink.rtop | R_0603_1608Metric | R32 |
| 1 | control.err_sink.rbot | R_0603_1608Metric | R33 |
| 1 | control.int.r | R_0603_1608Metric | R34 |
| 1 | control.hvclamp | R_0603_1608Metric | R35 |
| 1 | control.amp.r1 | R_0603_1608Metric | R36 |
| 1 | control.amp.r2 | R_0603_1608Metric | R37 |
| 1 | control.driver.res.res[0] | R_0603_1608Metric | R38 |
| 1 | control.driver.res.res[1] | R_0603_1608Metric | R39 |
| 1 | control.driver.res.res[2] | R_0603_1608Metric | R40 |
| 1 | control.driver.high_res | R_0603_1608Metric | R41 |
| 1 | control.driver.low_res | R_0603_1608Metric | R42 |
| 1 | control.vdiv.top_res | R_0603_1608Metric | R43 |
| 1 | control.vdiv.bottom_res | R_0603_1608Metric | R44 |
| 1 | control.isense.ranges[0].isense | R_1206_3216Metric | R45 |
| 1 | control.isense.ranges[0].pwr_sw.res | R_0603_1608Metric | R46 |
| 1 | control.isense.ranges[1].isense | R_0603_1608Metric | R47 |
| 1 | control.isense.ranges[1].pwr_sw.res | R_0603_1608Metric | R48 |
| 1 | control.isense.ranges[2].isense | R_0603_1608Metric | R49 |
| 1 | control.isense.ranges[2].pwr_sw.res | R_0603_1608Metric | R50 |
| 1 | control.ifilt.rp | R_0603_1608Metric | R51 |
| 1 | control.ifilt.rn | R_0603_1608Metric | R52 |
| 1 | control.vmeas.rg | R_0603_1608Metric | R53 |
| 1 | control.imeas.rg | R_0603_1608Metric | R54 |
| 1 | control.vclamp.r | R_0603_1608Metric | R55 |
| 1 | control.snub_r | R_0603_1608Metric | R56 |
| 1 | control.iclamp.r | R_0603_1608Metric | R57 |
| 1 | mcu.en_pull.r | R_0603_1608Metric | R58 |
| 1 | led.res | R_0603_1608Metric | R59 |
| 1 | i2c_pull.scl_res | R_0603_1608Metric | R60 |
| 1 | i2c_pull.sda_res | R_0603_1608Metric | R61 |
| 1 | oled.iref_res | R_0603_1608Metric | R62 |
| 1 | oled_rc.r | R_0603_1608Metric | R63 |
| 1 | ramp_pull | R_0603_1608Metric | R64 |
| 1 | buck_rc.r | R_0603_1608Metric | R65 |
| 1 | boost_rc.r | R_0603_1608Metric | R66 |
| 1 | conv_ovp.ref_div.top_res | R_0603_1608Metric | R67 |
| 1 | conv_ovp.ref_div.bottom_res | R_0603_1608Metric | R68 |
| 1 | conv_ovp.comp_div.top_res | R_0603_1608Metric | R69 |
| 1 | conv_ovp.comp_div.bottom_res | R_0603_1608Metric | R70 |
| 1 | conv_en_pull | R_0603_1608Metric | R71 |
| 1 | comp_pull | R_0603_1608Metric | R72 |
| 1 | conv_sense.top_res | R_0603_1608Metric | R73 |
| 1 | conv_sense.bottom_res | R_0603_1608Metric | R74 |
| 1 | qwiic_pull.scl_res | R_0603_1608Metric | R75 |
| 1 | qwiic_pull.sda_res | R_0603_1608Metric | R76 |
| 1 | dut0_clamp | R_0603_1608Metric | R77 |
| 1 | dut1_clamp | R_0603_1608Metric | R78 |
| 1 | fan_drv.pull | R_0603_1608Metric | R79 |
| 1 | adc.avdd_res | R_0603_1608Metric | R80 |
| 1 | adc.dvdd_res | R_0603_1608Metric | R81 |
| 1 | vcen_rc.r | R_0603_1608Metric | R82 |
| 1 | mv_rc.r | R_0603_1608Metric | R83 |
| 1 | mi_rc.r | R_0603_1608Metric | R84 |
UsbSourceMeasure design files
The KiCad project lives in the BerkeleyHCI/PolymorphicBlocks repository on GitHub; these links point at the commit this page was built from.
UsbSourceMeasure: common questions
What microcontroller does the UsbSourceMeasure use?
The UsbSourceMeasure is built around the mcu.ic, from the ESP32 family.
How big is the UsbSourceMeasure PCB?
The UsbSourceMeasure measures 168 × 52 mm, has 4 copper layers and is 2.63 mm thick.
How many components are on the UsbSourceMeasure?
310 components, from 310 distinct parts. The full bill of materials is listed on this page.
Where can I download the UsbSourceMeasure design files?
From the BerkeleyHCI/PolymorphicBlocks repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the UsbSourceMeasure design in my own project?
Yes, under the terms of its BSD-3-Clause license, which BerkeleyHCI chose for the repository.
Can I test firmware for the UsbSourceMeasure without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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