Ammeter
Tert2·KiCAD·ammeter/ammeter.kicad_pcb
About the Ammeter PCB
Ammeter is an open source AVR/Arduino PCB design by Tert2, published on GitHub. It is a 4-layer board measuring 25 × 15 mm, with 45 components from 40 distinct parts.
Its main chip is the PTN78000W_EUS-5, from the AVR/Arduino family. Other key parts include the TMUXHS221NKGT, MCP1501-12xRW, NJM4580, L7805 and AP63203WU. By type, the board carries 16 resistors, 15 capacitors, 8 ICs, 3 connectors, 2 switches and 1 inductor.
From the project
KiCAD data
Main components on the Ammeter
Ammeter bill of materials (BOM)
45 components, 40 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TMUXHS221NKGT | TMUXHS221NKGT | IC1 |
| 1 | MCP1501-12xRW | WDFN-8-1EP_2x2mm_P0.5mm_EP0.8x1.2mm | U1 |
| 1 | NJM4580 TLV9001IDCK | SOT-353_SC-70-5 | U2 |
| 1 | NJM4580 INA181 | SOT-23-6 | U3 |
| 1 | NJM4580 CH340E | MSOP-10_3x3mm_P0.5mm | U4 |
| 1 | L7805 ~ | X032-6032TSWAG02-H14 F | U5 |
| 1 | PTN78000W_EUS-5 ATtiny1604-SS | SOIC-14_3.9x8.7mm_P1.27mm | U6 |
| 1 | AP63203WU | TSOT-23-6 | U7 |
| 2 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4110 | J1, J2 |
| 1 | USB_C_RECEPTACLE_POWERONLY_6P USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4110 | J3 |
| 2 | SW_MEC_5E | SKRPABE010 | SW1, SW2 |
| 1 | 4.7u | C2520 | L1 |
| 2 | 2.2U 0.1u | 1005 | C1, C2 |
| 1 | 0.1U 0.1u | 1005 | C3 |
| 1 | 4.7U 1n | 1005 | C4 |
| 1 | 10U 1n | 1005 | C5 |
| 1 | 2200P 0.1u | 1005 | C6 |
| 1 | 2200P 1u | 1005 | C7 |
| 1 | 10U 1u | 1005 | C8 |
| 1 | 6800P 1u | 1005 | C9 |
Show 20 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 15N 4.7u | 1005 | C10 |
| 1 | 10U 4.7u | 1005 | C11 |
| 1 | 220P 10u | 1005 | C12 |
| 1 | 10U 0.1u | 1005 | C13 |
| 1 | 6800P 22u | C1608 | C14 |
| 1 | 15N 22u | C1608 | C15 |
| 2 | 10k | R1005 | R1, R2 |
| 2 | 330 4.7k | R1005 | R3, R4 |
| 1 | 8m | R_0805_2012Metric | R5 |
| 1 | 2.2K 100 | R1005 | R6 |
| 1 | 1.2K 100k | R1005 | R7 |
| 1 | 360 10k | R1005 | R8 |
| 1 | 16K 4.7k | R1005 | R9 |
| 1 | 2.2K 4.7k | R1005 | R10 |
| 1 | 1.2K 4.7k | R1005 | R11 |
| 1 | 16K 10k | R1005 | R12 |
| 1 | 360 4.7k | R1005 | R13 |
| 1 | 4.7k | R1005 | R14 |
| 1 | 1k | R1005 | R15 |
| 1 | 10K 10k | R1005 | R16 |
Ammeter design files
The KiCad project lives in the Tert2/KiCAD repository on GitHub; these links point at the commit this page was built from.
- Layoutammeter/ammeter.kicad_pcb
- Schematicammeter/ammeter.kicad_sch
- BOMv1000/v1000.csv
Ammeter: common questions
What microcontroller does the Ammeter use?
The Ammeter is built around the PTN78000W_EUS-5, from the AVR/Arduino family.
How big is the Ammeter PCB?
The Ammeter measures 25 × 15 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Ammeter?
45 components, from 40 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 Ammeter design files?
From the Tert2/KiCAD 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 Ammeter design in my own project?
The repository has no license, so all rights stay with Tert2. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Ammeter without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.
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