Remote
Work location
Compact ESP32 + SIMCom A7670E LTE PCB Design (Edge-Mounted I/O for Enclosure) Ended
About the job
We need a compact ESP32 + SIMCom LTE (A7670E/G) baseboard designed for integration inside an enclosure.
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SM... read more
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SM... read more
We need a compact ESP32 + SIMCom LTE (A7670E/G) baseboard designed for integration inside an enclosure.
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SMD manufacturing constraints. read less
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SMD manufacturing constraints. read less
We need a compact ESP32 + SIMCom LTE (A7670E/G) baseboard designed for integration inside an enclosure.
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V... read more
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V... read more
We need a compact ESP32 + SIMCom LTE (A7670E/G) baseboard designed for integration inside an enclosure.
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SMD manufacturing constraints. read less
The goal is to create a small, reliable PCB that provides LTE + GSM connectivity with proper power handling and neatly aligned connectors on specific edges.
Key requirements:
MCU: ESP32-WROOM-32E (SMD)
Modem: SIMCom A7670E or A7670G (LTE Cat-1 + GSM fallback)
Input Power: 5 V – 28 V DC, protected (reverse, surge, TVS, PTC)
Voltage Rails: 4.0 V @ 2.5 A for modem, 3.3 V @ 1.5 A for ESP32
Connectors (edge-mounted):
Top edge → MMCX antenna connector (for modem)
Left edge → Power port → JST-GH 4-pin (Pixhawk UART, 3.3 V) → Side-eject Nano-SIM slot
Form factor: ~50 × 35 mm, 4-layer stackup (L1 Signal/RF, L2 GND, L3 Power, L4 Signal)
Design style: Fully SMD; only barrel jack (optional THT) if needed
Includes: Level shifters (3.3 V↔1.8 V), ESD protection, bulk polymer caps for modem, test pads, mounting holes near I/O edge
Deliverables:
Complete KiCad or Altium design files (schematic + layout)
Gerbers and BOM ready for JLCPCB/PCBWay fabrication
Basic 3D step model / panel DXF for enclosure fit
Use case:
This PCB will serve as the communication core in a telemetry/tracking device. It must be reliable, small, and ready for enclosure integration with ports exposed at the panel.
Please include examples of previous ESP32/modem/RF board designs in your proposal. Preference for engineers experienced with RF layout, power design, and SMD manufacturing constraints. read less
Things to know
Any
Skill Level
Open budget
Fixed-rate
Part-time
Job type
Under 1-month
Job duration
Areas of expertise
Altium
ESP32
Gerber PCB Design Files
PCB Design
PCB Manufacturing
Power Supply Design
+3 more
Job categories
Electronic Devices
Electrical Engineering
PCB Design Services
About the client
Payment not ready
India (05:04 am)
Posted
Active
Job activity
10 Applicants
0 interviews in progress
3 unanswered invites
Similar jobs
PCB Automation Facility Design
Remote - Posted
PCB Automation Facility Hardware Design - Equipment to be fed and discharged from containers
PCB Design Services
View job
IoT Environmental Sensor PCB Review – ESP32-S3 + Sequans GM02S 4G/LTE-M/NB-IoT + WiFi/BT
Remote - Posted
Project Description:
I need a senior hardware/PCB engineer with direct experience in LTE-M/NB-IoT designs to perform a thorough pre-production review of my battery-powered Io...
PCB Design Services
Electronic Devices
Electronics Design Service
View job
Recreate PCB design from PDF schematic (for manufacturing on PCBWay)
Remote - Posted
I have an old electronic board that is completely burnt. I still have the full electrical schematic as a PDF (and some pictures of the original board if needed).
I need a com...
PCB Design Services
View job
Aucotec software Engineering
Remote - Posted
I’m working on an electrical design and need a hand inside Aucotec (Engineering Base / ELCAD). The goal is to produce a clean, editable project file along with PDF exports tha...
Aerospace Engineering
Electrical Engineering
Engineering Design
Software Developers
Software Developers Staffing Agency
View job
Embedded & PCB development
Delhi, India - Posted
1. Project Overview: We would like to review your expertise for the Electronic Control Unit (ECU) development project to be used in agricultural tractors. This project aims to...
Electronic Prototyping and Design Services
Electronic Devices
View job
Electronics Engineer for Simple CPAP-Style Airflow Device
Remote - Posted
I’m looking for an electronics engineer to help with a simple prototype device that provides steady airflow (similar to a CPAP machine). This is an early prototype stage — I a...
Electronic Devices
Electrical Engineering
PCB Design Services
Electrical Circuit Design Services
View job
