EL-210-MOD
About the EL-210-MOD PCB
EL-210-MOD is an open source STM32 PCB design by suikan4github, published on GitHub under the MIT license. It is a 2-layer board measuring 66 × 65 mm, with 36 components from 22 distinct parts.
Its main chip is the STM32G0B1KET6, from the STM32 family. Other key parts include the 9-ST-20, MAX6934AQH+D, TPS613221ADBV, MAX4719EUB+ and TLV61046ADB. By type, the board carries 11 capacitors, 6 ICs, 5 resistors, 3 connectors, 2 diodes and 2 inductors.
From the project
Alternative circuit for SHARP EL-210 calculator
This is a circuit/board design for the alternate PCB for the SHARP EL-210/215 calculators. SHARP EL-210 series are manufactured around early 1980th. By using this alternate PCB, you can program any program as firmware of this classic VFD calculator.
There is an dedicated RPN firmware is located in the rpn2026 project.
To make your own RPN calculator, user must follow the procedure : 1. Take the main board of the EL-210 out. 1. Move the VFD from the old board to this board. 1. Set this board into the EL-210 calculator. 1. Program the board with the appropriate RPN firmware.
Main components on the EL-210-MOD
EL-210-MOD bill of materials (BOM)
36 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 9-ST-20 | 9-ST-20 | U1 |
| 1 | STM32G0B1KET6 | LQFP-32_7x7mm_P0.8mm | U2 |
| 1 | MAX6934AQH+D | PLCC44_handsoldering | U3 |
| 1 | TPS613221ADBV | SOT-23-5 | U4 |
| 1 | MAX4719EUB+ | MSOP-10_3x3mm_P0.5mm | U5 |
| 1 | TLV61046ADB | SOT-23-6 | U6 |
| 1 | Conn_01x05 | PinHeader_1x05_P2.54mm_Horizontal | J1 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | EL-210-KEY | EL-210-KEY | P1 |
| 2 | hole_2.0mm | hole_2.0mm | H1, H2 |
| 2 | hole_1.9mm | hole_1.8mm | H3, H7 |
| 3 | hole_2.8mm | hole_2.8mm | H4, H5, H6 |
| 2 | D_Schottky | D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D1, D2 |
| 1 | 4.7uH | LQH5BPN100M38L | L1 |
| 1 | 10uH | LQH5BPN100M38L | L2 |
| 2 | 1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C5 |
| 7 | 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3, C4, C7, C8, C9, C10 |
| 1 | 22u | CP_Elec_4x3.9 | C6 |
| 1 | 10u | CP_Elec_6.3x3.9 | C11 |
| 3 | 18 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 61.9k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4 |
| 1 | 2.15k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5 |
EL-210-MOD design files
The KiCad project lives in the suikan4github/EL-210-MOD repository on GitHub; these links point at the commit this page was built from.
- LayoutEL-210-MOD.kicad_pcb
- SchematicEL-210-MOD.kicad_sch
EL-210-MOD: common questions
What microcontroller does the EL-210-MOD use?
The EL-210-MOD is built around the STM32G0B1KET6, from the STM32 family.
How big is the EL-210-MOD PCB?
The EL-210-MOD measures 66 × 65 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the EL-210-MOD?
36 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the EL-210-MOD design files?
From the suikan4github/EL-210-MOD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EL-210-MOD design in my own project?
Yes, under the terms of its MIT license, which suikan4github chose for the repository.
Can I test firmware for the EL-210-MOD without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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