
Closed
Posted
I am putting together a pocket-sized Bluetooth thermal printer built around an ESP32 and the LPT02 print head, and I need the full electronics package designed. What I already know • Core MCU: ESP32 (for Bluetooth LE) • Power & I/O: USB-C for charging and programming, a 700 mAh Li-Po, a single on/off button and a small status LED • Print mechanism: LPT02 thermal head What I need from you 1. A compact schematic that ties all of this together, including help choosing: – the most space-efficient ESP32/Bluetooth module variant – a reliable, low-profile battery-management/charging IC suited to USB-C – an on/off control scheme that avoids parasitic drain yet keeps BOM count low 2. A production-ready PCB layout that meets the size constraint without compromising signal integrity or thermal performance. 3. All manufacturing outputs: clean Gerbers, drill files, annotated BOM with sourcing suggestions, and pick-and-place data. 4. (Nice to have) A simple enclosure concept—STL—showing standoff heights, port cut-outs, and mounting for the LPT02. If you have experience squeezing ESP32 designs into tight spaces and have previously delivered working printer or battery-powered IoT boards, I’d love to see your approach.
Project ID: 39739409
20 proposals
Remote project
Active 8 mos ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
20 freelancers are bidding on average $34 CAD/hour for this job

Hi there! I'm Metin, an experienced electrical engineer who can bring your compact ESP32 thermal printer PCB to life! As you outlined, my skills in Bluetooth technology, circuit design, embedded systems, and PCB layout make a perfect fit for this project. I have a solid background in Digital Motor Control which is highly applicable when squeezing ESP32 designs into thin spaces, ensuring maximum efficiency and optimal performance. My proficiency with Altium, Easyeda, and other key software will enable me to create a compact schematic that ties all the- ESP32/Bluetooth module variant, battery-management/charging IC suited to USB-C and more together strategically. Moreover, I have worked on projects involving low power distribution, noiseless opamp based analog circuits and SMPS board designs which are crucial to meet the size constraint without compromising signal integrity or thermal performance. I have delivered several successful projects like renewable energy, battery-powered IoT boards etc. Therefore, I can provide you with all manufacturing outputs required like clean Gerber's, BOMs etc. Besides the main requirements of this project, I am open to considering your "nice-to-have" aspect as well by offering an enclosure concept showing standoff heights, port cut-outs and mounting for LPT02.
$25 CAD in 20 days
7.4
7.4

Hello, I understand that you are looking to create a pocket-sized Bluetooth thermal printer using the ESP32 and LPT02 print head. My approach will start with designing a compact schematic that efficiently integrates all components. I will help you choose the best ESP32 module variant for your size constraints and will select a low-profile battery management IC that works well with USB-C. Additionally, I will implement an on/off control scheme that minimizes parasitic drain while keeping the BOM count low. For the PCB layout, I will ensure that the design meets your size requirements without compromising on signal integrity or thermal performance. I will also provide all necessary manufacturing outputs, including clean Gerbers, drill files, an annotated BOM with sourcing suggestions, and pick-and-place data. Lastly, if you desire, I can include a simple STL concept for the enclosure that outlines standoff heights, port cut-outs, and mounting points for the LPT02. What is the maximum size constraint for the PCB layout you have in mind for the thermal printer? Thanks, Shamshad
$34 CAD in 36 days
6.6
6.6

As a seasoned electrical engineer with a passion for miniaturized PCB design, I believe I am the perfect candidate to bring your ESP32 thermal printer to life. Having worked extensively on tight-space projects like yours and utilizing the LPT02 thermal head, I have gained in-depth knowledge of ESP32 and Bluetooth integration essential for this project. My eight years of experience specializing in designing high-quality circuit boards using popular software such as Eagle, Altium, KiCAD and EasyEDA further ensure that your PCB layout meets size constraints without compromising signal integrity. One area where my expertise can make a substantial difference is in providing you with a reliable, low-profile battery management/charging IC suitable for USB-C and an impactful on/off control scheme that keeps BOM count low while avoiding parasitic drain. Drawing from my robust knowledge of various ICs, sourcing suggestions and guidelines, I'll manage every aspect of your electronics package efficiently. Like you, I'm driven by the desire to see ideas transformed into reality. If chosen for this project, you can expect not only top-notch work delivered on time but also strong communication throughout our collaboration. Don't just take my word for it; take a moment to check out my portfolio to see the tangible results of my passion and expertise in action. Reach out anytime --day or night- let’s make your vision real together.
$38 CAD in 40 days
6.7
6.7

Since 2003 I am working in Digital Electronic. So more than 18 years of experience in Electronics. Arduino NANO/UNO/MEGA, ESP32 and Raspberry PI to build a digital device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. More than 5(five) years of experience in Arduino design and build. If you want an excellent and error-free project delivery, then send a message to me, please. Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply design. Any kinds of schematic and PCB design. Expert PCB design in EasyEDA Pro IDE.
$50 CAD in 40 days
6.7
6.7

Hi there, I’ve read your brief and can deliver a compact, production-ready electronics package for the ESP32 + LPT02 thermal printer — schematic, space-efficient module selection, USB-C Li-Po charging and low-parasitic on/off scheme, PCB layout, Gerbers/BOM/PnP, and optional STL enclosure. With ~5 years in mechatronics and PCB design I’ve done tight ESP32 builds, battery-management/USB-C designs, low-profile mechanical integrations and thermal/PI-aware layouts — I’ve worked with all the components and techniques you listed. I’ll produce manufacturable outputs and sourcing guidance quickly and professionally. Message me and I’ll share a short plan and quote to get started. Best regards, Samuel tshibangu
$38 CAD in 40 days
6.3
6.3

Hello, I’m excited about your project to create a pocket-sized Bluetooth thermal printer! I understand that you need a compact electronics design that integrates the ESP32, LPT02 print head, and a USB-C charging system. My approach will involve creating a detailed schematic that not only meets your size requirements but also focuses on selecting the most space-efficient components, including the ESP32 module and a low-profile battery-management IC. I’ll ensure the schematics provide an effective on/off control scheme to avoid any unnecessary power drain. For the PCB layout, I will prioritize maintaining signal integrity and thermal performance while staying within the design constraints. I will deliver complete manufacturing outputs, including Gerbers, drill files, an annotated BOM, and pick-and-place data. Additionally, I can create a conceptual STL file for the enclosure, accommodating all the necessary features. Could you provide any specific dimensions or weight constraints for the enclosure design? Thanks, Muhammad Awais
$34 CAD in 35 days
6.0
6.0

Hello there! I'm ready to take on designing your Compact ESP32 Thermal Printer PCB project. I'll create a compact schematic integrating the ESP32, USB-C charging, Li-Po battery, on/off control, and the LPT02 print head. I'll select an efficient ESP32/Bluetooth module, a suitable battery-management/charging IC, and a low BOM count control scheme. The production-ready PCB layout will focus on size, signal integrity, and thermal performance. I'll provide clean Gerbers, drill files, annotated BOM, and pick-and-place data. Additionally, I can work on a simple enclosure concept if needed. My expertise in Circuit Design, Microcontroller, Electronics, and PCB Layout ensures a successful outcome. Cheers, RedBrick American Engineering
$34 CAD in 33 days
3.8
3.8

Hello Nathan, I'm excited about the opportunity to work on your pocket-sized Bluetooth thermal printer project! With over 3 years of experience in designing compact electronic systems, I specialize in ESP32 designs and understand the nuances of optimizing for size without sacrificing performance. For your project, I will provide a compact schematic that integrates the ESP32, ensuring we select the most space-efficient module variant and a suitable low-profile battery-management IC for USB-C charging. Additionally, I will develop a PCB layout that not only adheres to your size constraints but also maintains signal integrity and thermal performance. Along with clean Gerbers and an annotated BOM, I can include simple STL concepts for the enclosure as a nice value-add. I have previously delivered successful designs for battery-powered IoT devices and thermal printers, which aligns perfectly with your requirements. Could you clarify any specific size constraints or preferences for the PCB layout and enclosure design? Thanks, Muhammad Ahmad
$25 CAD in 20 days
3.9
3.9

My name is Rabia Faisal, I am working in the writing industry since 2011. During this time, I have served countless clients with a full amount of satisfaction by providing them with TOP Quality Solutions. I have command of all references APA, Harvard, IEEE, MLA & Chicago, etc. I will provide plagiarism-free work with 100 percent accurate grammar within your given deadline. Please message me to get Top Class Services. I am waiting; https://www.freelancer.com/u/TopWritingGuru
$25 CAD in 1 day
3.0
3.0

My name is "Usama Safdar" and I am a Ph.D degree holder which means I am highly-capable to tackle this project "Content Editor " with 100 percent accuracy. I am a professional writer with over 6 years of experience in writing; Essays, Research Summaries, Thesis, Dissertation, Lab Reports and Case Studies. I always provide High-Quality Solutions within the shortest possible time with all instructions followed against very reasonable prices. I can manage works even with shortest deadlines like; "2500 words work in just 6 Hours" with very reasonable time. As a pro academic writer I am also familiar with all the referencing styles; such as APA, Harvard, OSCOLA, IEE, MLA etc. I always provide plagiarism-free solutions and as a prove I also provide "FREE Turnitin reports". For Samples, please visit my profile https://www.freelancer.com/u/SolutionMart Please message me to start the discussion. Thank You
$25 CAD in 1 day
1.2
1.2

Hello Nathan A., I have read the project details and understood the overall requirement. I am Abdul, with 5 years of experience in Electronics, Microcontroller, Electrical Engineering, PCB Layout, Circuit Design, Bluetooth, and Embedded Systems. I have successfully delivered multiple projects in similar domains. For this project, I propose to design a compact schematic integrating the ESP32, USB-C charging, Li-Po battery, on/off control, and the LPT02 thermal head. I will ensure the selection of space-efficient components and a reliable battery management system. The PCB layout will prioritize size constraints while maintaining signal integrity and thermal performance. Please find my portfolio here: https://www.freelancer.com/u/mannanmaan1425 Please ping me back so we can discuss the project further in the chat. Best regards, Abdul
$25 CAD in 40 days
0.0
0.0

Hello, Creating a compact Bluetooth thermal printer is an exciting challenge! I can design a tailored electronics package focusing on the ESP32 and LPT02 print head, ensuring space efficiency and top-notch functionality. I'll develop a compact schematic addressing your needs: selecting the optimal ESP32 variant, an efficient battery-management IC, and an on/off control scheme that minimizes power drain. Our production-ready PCB layout will maintain signal integrity and thermal performance while meeting your size constraints. I will provide all necessary manufacturing outputs, including Gerbers, BOM, and pick-and-place data. Can you share any specific design considerations or preferences you have for the compact printer, particularly regarding the enclosure? Thank You, THE CALIFORNIA STUDIO
$34 CAD in 22 days
0.0
0.0

Hello, I can design the full electronics package for your pocket-sized Bluetooth thermal printer, ensuring a compact and efficient layout. I have extensive experience with ESP32-based systems, battery management ICs, and USB-C power integration, which will allow me to select the most space-efficient components for your design. I will provide you with a production-ready schematic, optimized PCB layout, and complete manufacturing outputs including Gerbers, BOM, and pick-and-place data. Additionally, I can propose a simple enclosure concept to support assembly and usability. My background in delivering compact IoT and battery-powered devices makes me confident I can meet your requirements with precision.
$38 CAD in 40 days
0.0
0.0

Hi, Thank you for sharing your project — I’m excited by the opportunity to help bring your pocket-sized Bluetooth thermal printer to life. This aligns closely with my experience designing compact ESP32-based, battery-powered products. What I’ll deliver: Schematic & Component Selection: ESP32 variant recommendation, USB-C battery management IC, low-drain on/off control, and safe LPT02 interface. PCB Layout: Compact, production-ready design optimized for BLE performance, signal integrity, and thermal routing. Manufacturing Outputs: Gerbers, drill files, annotated BOM with sourcing options, and pick-and-place data. (Optional) Enclosure Concept: STL showing standoffs, cutouts, and LPT02 mounting. Why me: I have hands-on experience with ESP32 layouts in tight spaces, USB-C charging circuits, and low-power IoT boards, with a proven record of delivering production-ready electronics. Next Steps: Once scope is confirmed, I’ll provide milestones (schematic → layout → outputs). I can sign an NDA before reviewing proprietary details. I look forward to supporting you from core design through production. Kind regards, Dung Mai
$38 CAD in 40 days
0.0
0.0

Saint John, Canada
Payment method verified
Member since Jul 11, 2020
$15-25 CAD / hour
$10-30 CAD
$30-250 CAD
$10-30 CAD
$30-250 CAD
$5000-10000 USD
₹12500-37500 INR
₹100-400 INR / hour
€750-1500 EUR
₹37500-75000 INR
₹12500-37500 INR
₹12500-37500 INR
£250-750 GBP
$30 USD
$250-750 USD
$10-1000 USD
€12-18 EUR / hour
$10-30 USD
₹1500-12500 INR
$10-1000 USD
$250-750 AUD
₹4000-6000 INR
₹12345-123456 INR
$250-750 USD
₹12500-37500 INR