6 x 5V PWM O/P (H14RA)

SKU: H14RA Category:

6 x 5V PWM O/P 

Stage: Testing

Description

A compact, versatile module designed for motor control and general-purpose signal generation. Based on an STM32G0 microcontroller and LM2775-Q1 boost converter, it provides up to 6 independent PWM outputs with 5V logic levels.
Core Components:
– Microcontroller: STM32G0 MCU
– Boost Converter: LM2775-Q1
– Typical input: 2.7V–5V → regulated 5V output
– Output current: I<sub>out</sub> ≤ 200 mA
– Auxiliary Transistor: MMBT3904LT1G (NPN, VCEO 40VDC, IC 200mA, PD 225mW, SOT-23, ON Semiconductor)

Operating Modes:

Motor Control Mode
– 6 × 5V PWM outputs for BLDC motors via ESC circuits
– PWM frequency: fixed at 50 Hz (industry standard)
– Pulse width: 1–2 ms maps to 0–100% throttle
– Motor Actions:
– Turn on motor: Sets selected motor (MOTOR_1 to MOTOR_6) to max ESC signal
– Turn off motor: Stops PWM and clears output
– Set motor speed: Adjusts PWM duty cycle (0% to 100%)

⚙️ General-Purpose PWM Mode
– Programmable frequency: 0 to 50 kHz
– Duty cycle range: 0% to 100%
– Channel selection: OUT_1 to OUT_6
– Signal type: 5V TTL-compatible — suitable for ESCs, microcontrollers, LEDs, etc.

⚠️ Note: Outputs are control signals only; external ESCs are required for actual motor power delivery.

Applications:
– Robotics and drone motor control
– Modular actuator systems in maker platforms
– Signal generation for LEDs, servos, or logic-level interfacing
– STEM education and hands-on PWM experimentation
– Interactive art installations using motion and light

Specifications

Front-end

  • Boost Converter: LM2775-Q1
    • Input: 2.7V–5V
    • Regulated Output: 5V
    • Output Current: I<sub>out</sub> ≤ 200 mA
  • Auxiliary Transistor: MMBT3904LT1G (NPN)
    • VCEO: 40VDC
    • IC: 200 mA
    • PD: 225 mW
    • Package: SOT-23
    • Manufacturer: ON Semiconductor

Back-end

  • STM32G0B1CEU6N 32-bit ARM Cortex-M0 MCU.
  • 8MHz external oscillator.
  • Five array ports and four power ports (+3.3V and GND).
  • Access to 5xUART, SWD, BOOT0, RESET.

Physical Properties

  • Shape: Hexagon
  • Size: 30 mm short diagonal, 17.32 mm side
  • Area: 7.8 cm^2
  • Weight: 2 g
  • Soldermask Color: Dark green
  • Surface Finish: ENIG (gold) or HASL-LF (tin)

 

Projects

Please visit this product projects on Hackster.io network.

BOM

Designator Description Manufacturer Part Number Manufacturer Octopart Url Quantity
R Headers & Wire Housings Unshrouded 1 POS T/H 5-146280-1 TE Connectivity https://octopart.com/5-146280-1-te+connectivity+%2F+amp-40259676?r=sp 1
 SWD Conn Unshrouded Header HDR 3 POS 2.54mm Solder ST Top Entry Thru-Hole Carton 5-146281-3 TE Connectivity https://octopart.com/5-146281-3-te+connectivity+%2F+amp-39745942?r=sp 1
PWM_O/P Connector Header Through Hole 12 position 0.100″ (2.54mm) 61301221121 Würth Elektronik https://octopart.com/61301221121-wurth+elektronik-32855540?r=sp 1
R1 RES SMD 0.0OHM JUMPER 1/10W 0603 RC0603JR-070RL YAGEO [VR] https://octopart.com/rc0603jr-070rl-yageo-1241539?r=sp 1
R2 Thick Film Resistors – SMD 0603 270 Ohm 5% Tol ERJ-3GEYJ271V Panasonic https://octopart.com/erj-3geyj271v-panasonic-55560546?r=sp 1
R3, R5, R7, R9, R11, R13, R15 RES 10K Ohm 5% 0603 CRCW060310K0JNEB Vishay https://octopart.com/crcw060310k0jneb-vishay-46603269 7
R4, R6, R8, R10, R12, R14 200 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603 RC0603FR-07200KL YAGEO https://octopart.com/rc0603fr-07200kl-yageo-1190520?r=sp 6
C1, C2, C4, C6, C8, C12 CAP CER 0.1 UF 25V 10% X7R 0603 CL10B104KA8NNNC Samsung Electro-Mechanics https://octopart.com/cl10b104ka8nnnc-samsung-19831573?r=sp 6
C14, C5 CAP CER 1 UF 16V X7R 0805 CC0805KKX7R7BB105 YAGEO [VA] https://octopart.com/cc0805kkx7r7bb105-yageo-8376555?r=sp 2
 C7, C3 CAP CER 4.7UF 16V X7R 0805 C0805C475K4RACTU KEMET [VA] https://octopart.com/c0805c475k4ractu-kemet-22859922?r=sp 2
C9, C13 CAP CER 10UF 10V X5R 0603 GRM188R61A106KE69D Murata https://octopart.com/grm188r61a106ke69d-murata-22851381?r=ap&s=o9t4ILLiSny6rfdd0oM5Kg 2
FB1 Ind chip Bead Multi-Layer 30 ohms 25% 100MHZ Ferrite 1,5A 0603Punched paper T/R MMZ1608Y300BTA00 TDK  https://octopart.com/mmz1608y300bta00-tdk-7906990?r=sp 1
D1  Red 0603 130° Clear 54 mcd 2 V Surface Mount ChipLED  VLMS1300-GS08 Vishay https://octopart.com/vlms1300-gs08-vishay-21709201?r=sp&s=0nXJNjGsSbWwqfqWlZv0EA 1
D2 TVS DIODE 3,3V 10,9V SOD323 CDSOD323-T03SC BOURNS INC https://octopart.com/cdsod323-t03sc-bourns-10487153?r=sp 1
Q1, Q2, Q3, Q4, Q5, Q6 Transistor, Bipolar, Si, NPN, General Purpose, VCEO 40VDC, IC 200mA, PD 225mW, SOT-23 MMBT3904LT1G ON Semiconductor https://octopart.com/mmbt3904lt1g-on+semiconductor-3280?r=sp 6
U1 MCU 32-bit ARM Cortex M0+ RISC 512KB Flash 1.8V/2.5V/3.3V 48-Pin UFQFPN EP Tray STM32G0B1CEU6 STMicroelectronics https://octopart.com/stm32g0b1ceu6-stmicroelectronics-116363364?r=sp 1
U2 Switched Capacitor 5V Boost Converter 8-WSON -40 to 125 LM2775QDSGRQ1 Texas Instruments https://octopart.com/lm2775qdsgrq1-texas+instruments-93339195?r=sp&s=OA7oim0HQqaBsU4tLKFWXg LM2775QDSGRQ1 1
X1 8,0000MHZ 33pF SMD MURATA Resonators CSTNE8M00G550000R0 Murata https://octopart.com/cstne8m00g550000r0-murata-91406934?r=sp 1

Quickstart Guide

Download PDF version here.

FAQ

Frequently Asked Questions

Have more questions? Please check our main FAQ page and feel free to contact us for any unanswered questions.

Factsheet

Download a PDF version here.

Resources

  • Schematics (PDF)
  • Hardware Design Files (Eagle)
  • Source Code (GitHub). Download a pre-compiled firmware HEX file here.
  • Documentation / Factsheet (PDF)
  • Projects & Examples: Please check our account on Hackster.io for demo projects and examples.

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