DMM XIAO V3 AsOrdered
About the DMM XIAO V3 AsOrdered PCB
DMM XIAO V3 AsOrdered is an open source PCB design by oihdesigns, published on GitHub. It is a 4-layer board measuring 68.5 × 53.3 mm, with 68 components from 50 distinct parts.
Other key parts include the AD8237ARMZ, TMUX1108PWR, TCA9536DGKR, OPA333AIDBVR and Opamp_Dual. By type, the board carries 18 resistors, 16 connectors, 10 ICs, 9 capacitors, 5 transistors and 4 switches.
It belongs with the test & measurement designs in this gallery.
From the project
A small, open hardware DMM
This is the PCB design and code for a 4.5 digit DMM/ instrumentation module. It is designed and written primairly for Arduino-style development boards.
I've developed this DMM in my work testing and troubleshooting electronics to make my life easier.
I've had Deep-Wiki index my documentation. It did a mostly okay job. You can read its summary here: [](https://deepwiki.com/oihdesigns/Micro-DMM)
Main components on the DMM XIAO V3 AsOrdered
DMM XIAO V3 AsOrdered bill of materials (BOM)
68 components, 50 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD8237ARMZ LM317_TO-220 | SOT-223-3_TabPin2 | U1 |
| 1 | TMUX1108PWR ~ | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | TCA9536DGKR ADS1115IDGS | TSSOP-10_3x3mm_P0.5mm | U3 |
| 1 | OPA333AIDBVR ~ | SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 2 | Opamp_Dual | SOIC-8_3.9x4.9mm_P1.27mm | U5, U8 |
| 1 | MAX1683 | SOT-23-5_HandSoldering | U7 |
| 1 | TPS613222ADBV | SOT-23-5 | U9 |
| 1 | LM4040DBZ-2.5 | SOT-23 | U10 |
| 1 | LM4040DBZ-5 | SOT-23 | U11 |
| 1 | MMBT3904 | SOT-23 | Q1 |
| 2 | SI2302 MOSFET | SOT-23 | Q2, Q8 |
| 2 | BSS138 | SOT-23 | Q6, Q7 |
| 2 | Conn_01x07_Pin | PinSocket_1x07_P2.54mm_Vertical | J1, J3 |
| 1 | MicoSD | PinSocket_1x06_P2.54mm_Vertical | J2 |
| 1 | POWER2 | PinHeader_1x03_P2.54mm_Vertical_NoBox | J5 |
| 1 | POWER1 | PinHeader_1x08_P2.54mm_Vertical_NoBox | J6 |
| 2 | Conn_01x02_Pin | PinSocket_1x02_P2.54mm_Vertical | J7, J12 |
| 1 | DIGITAL2 | PinHeader_1x10_P2.54mm_Vertical_NoBox | J8 |
| 1 | Out to Screen | PinSocket_1x04_P2.54mm_Vertical | J9 |
| 1 | ANALOG | PinHeader_1x06_P2.54mm_Vertical_NoBox | J10 |
Show 30 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | I_Input | PinSocket_1x03_P2.54mm_Vertical | J11 |
| 1 | DIGITAL1 | PinHeader_1x08_P2.54mm_Vertical_NoBox | J13 |
| 2 | Barrel_Jack | BarrelJack_Horizontal | J14, J15 |
| 2 | Conn_01x01_Socket | PinSocket_1x01_P2.54mm_Vertical | J16, J17 |
| 1 | Fuse | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | Jumper_2_Bridged | SolderJumper-2_P1.3mm_Bridged_Pad1.0x1.5mm | JP6 |
| 3 | SW_Push | SW_SPST_CK_RS282G05A3 | SW1, SW2, SW4 |
| 1 | SW_SPDT | SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW3 |
| 1 | LED | LED_Luminus_MP-3030-1100_3.0x3.0mm | D1 |
| 2 | D_Schottky | D_SOD-123 | D4, D5 |
| 1 | 2.2uH | L_Murata_DFE201610P | L1 |
| 1 | 2.2uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 2 | 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C17 |
| 3 | 4.7uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9, C10, C15 |
| 2 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16, C19 |
| 1 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C18 |
| 1 | 500 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 22K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 100K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 62.0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 1 | 330.0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 1 | 100K 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7 |
| 1 | 22.0K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9 |
| 1 | 200R 22.0K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 2 | 4.7K 499.0K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18 |
| 3 | 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21, R22, R23 |
| 1 | 1.0M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R24 |
| 1 | 4.7K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27 |
| 2 | R_Pack04_SIP | R_Array_Convex_4x1206 | RN1, RN2 |
DMM XIAO V3 AsOrdered design files
The KiCad project lives in the oihdesigns/Micro-DMM repository on GitHub; these links point at the commit this page was built from.
DMM XIAO V3 AsOrdered: common questions
How big is the DMM XIAO V3 AsOrdered PCB?
The DMM XIAO V3 AsOrdered measures 68.5 × 53.3 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the DMM XIAO V3 AsOrdered?
68 components, from 50 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the DMM XIAO V3 AsOrdered design files?
From the oihdesigns/Micro-DMM repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the DMM XIAO V3 AsOrdered design in my own project?
The repository has no license, so all rights stay with oihdesigns. Use it as a reference, and ask the author before reusing the design.
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