rastorc3v/emg-customNew: - both hands control - new esp module (smaller size needed) - ne ADS1299 chip per hand - 8 channels - found at 30$ per chip - simpler infra - programmable gain - IMU chip per hand (gyro + accelerometer) - custom…
Scheme is an open-source printed circuit board by rastorc3v, from the rastorc3v/emg-custom repository on GitHub. It is a 2-layer board of 56.2 × 51.1 mm with 104 parts on 124 nets, routed with 990 tracks and 72 vias.
It is built around the ESP32-S3-WROOM-1U-N16R8, AD8232ACPZ-R7 and 74HC4051D, with the AMS1117-3.3 among its other parts. Its parts include 62 resistors, 20 capacitors, 11 connectors, 9 ICs and 2 switches. It belongs with the ESP32 boards of this library.
New:
| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 100K | Resistor_SMD:R_0805_2012Metric | R6, R11, R13, R15, R16, R21, R25, R28, R35, R51, R53, R57, R63, R65 |
| 12 | 1M | Resistor_SMD:R_0805_2012Metric | R10, R12, R17, R29, R33, R34, R49, R50, R52, R61, R62, R64 |
| 8 | 180K | Resistor_SMD:R_0805_2012Metric | R18, R19, R30, R31, R54, R55, R66, R67 |
| 8 | 43K | Resistor_SMD:R_0805_2012Metric | R8, R9, R23, R24, R27, R48, R59, R60 |
| 7 | Conn_01x03_Pin | Connector_PinHeader_1.00mm:PinHeader_1x03_P1.00mm_Vertical | J1, J2, J3, J4, J6, J10, J11 |
| 6 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3, C6, C7, C13, C16, C22 |
| 5 | 1nF | Capacitor_SMD:C_0805_2012Metric | C10, C18, C19, C20, C21 |
| 4 | 100R | Resistor_SMD:R_0805_2012Metric | R69, R70, R71, R72 |
| 4 | 1µF | Capacitor_SMD:C_0805_2012Metric | C4, C8, C14, C17 |
| 4 | 59K | Resistor_SMD:R_0805_2012Metric | R7, R22, R26, R58 |
| 4 | 8.2nF | Capacitor_SMD:C_0805_2012Metric | C2, C5, C12, C15 |
| 4 | 820K | Resistor_SMD:R_0805_2012Metric | R20, R32, R56, R68 |
| 4 | AD8232ACPZ-R7 | SamacSys_Parts:QFN50P400X400X80-21N-D | IC2, IC5, IC6, IC7 |
| 3 | 10K | Resistor_SMD:R_0805_2012Metric | R4, R5, R73 |
| 3 | Conn_01x03_Pin | Connector_PinHeader_1.00mm:PinHeader_1x03_P1.00mm_Horizontal | J7, J8, J9 |
| 2 | 22R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | 5.1K | SamacSys_Parts:RESC2012X60N | R14, R37 |
| 1 | 0.22µF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 0R | Resistor_SMD:R_0805_2012Metric | R36 |
| 1 | 74HC4051D | SamacSys_Parts:SOIC127P600X175-16N | IC10 |
| 1 | ADS131M04IPWR | SamacSys_Parts:SOP65P640X120-20N | IC1 |
| 1 | AMS1117-3.3 | SamacSys_Parts:SOT229P700X180-4N | IC4 |
| 1 | ESP32-S3-WROOM-1U-N16R8 | SamacSys_Parts:ESP32S3WROOM1UN16R8 | IC3 |
| 1 | SKHMQKE010 (boot) | SamacSys_Parts:SKHMQLE010 | S2 |
| 1 | SKHMQKE010 (reset) | SamacSys_Parts:SKHMQLE010 | S1 |
| 1 | TLV9001SIDCKR | SamacSys_Parts:SOT65P210X110-6N | IC8 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J5 |
It measures 56.2 × 51.1 mm and has 2 copper layers, 1.6 mm thick.
104 parts, built around the ESP32-S3-WROOM-1U-N16R8, AD8232ACPZ-R7, 74HC4051D and AMS1117-3.3. 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.
From the rastorc3v/emg-custom repository on GitHub, at the commit this page was made from: the board is scheme/scheme/scheme.kicad_pcb and its schematic scheme/scheme/scheme.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask rastorc3v before reusing the design.
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