6: Electronic Prototyping

Titoma HWW Prototyping

Prototyping custom electronic devices

During the product development stages we produce several rounds of prototypes. We often start with simple block models to evaluate ergonomics and size. Next can be partially functional electronic prototypes to evaluate the best cost/performance of certain components. We end with complete looks-like-works-like working prototypes, for client approval. For reasons of speed and IP protection, we do most of our prototyping in-house, the housings 3D printed and the circuits often hand soldered by our nifty technicians. Our design engineers assemble the working prototypes themselves to assure proper functionality, and start a range of functional tests. The working prototypes are then sent to our clients for field-testing, get real user feedback to identify potential bugs and possible improvements. After the CNC’ed prototypes have undergone sufficient testing and validation, pre-production prototypes are made using injection molded parts and PCB assemblies produced by an automated SMT line. We use the actual injection molded parts to do drop- and ingression tests on the housings.


Proof of concept from a technical standpoint


A rudimentary prototype may be made during the early stages of development in the form of a Proof of Concept to prove the idea works from a technical standpoint, or as a Mock Up to simply convey shape and size but not the function, material, or production methods of a final mass produced product.


The importance of a prototype


A prototype is the product of the electronic development process and is an essential part in the design, development, as well as certification procedure. In prototyping, we take a concept that exists only on paper and substantiate it into physical form that functions as the envisioned product should. How an electronic product will respond to user input is difficult to evaluate without experiencing them first hand. As a tool in the development process used to validate electronic design, a prototype is crucial for understanding the complex interaction between user and device.


What it takes to create a perfect golden sample


During the development stage, several working prototypes may be produced, usually by hand, and are tested by our engineers. The prototypes are then sent to our client for further testing in the field to gather feedback and to identify bugs that will later be corrected.

Once a prototype has undergone sufficient testing and validation, a pre-production prototype is then regarded as the “golden sample,” which is used as the benchmark or standard on which mass produced units will be based. This golden sample is also used for certification purposes and sent to a third-party testing facility for CE, UL, FCC, or ROHS markings.



Important note:

Titoma creates prototypes as a part of our development process and does not engage in projects requiring only prototypes as an independent service; as the time and capital investment necessary for developing a product is too significant if the goal is only to produce prototypes and not manufacturing.



United States of America

Taiwan (Headquarters)

Case Engelen - Taiwanese Representative for Titoma Product Development

Case Engelen, CEO
+886 2 8698 1249
18F, No.75, Xintai 5th Rd.,Section1, XiZhi 22101 Taiwan

The Netherlands

Stef Traa - Your Dutch Representative for Titoma Product Development in China

Stef Traa
+31 6 2939 8629
Camperstraat 14
1091 AE Amsterdam,


Ronald Hartmann - Swiss Representative for Titoma Product Development in China

Ronald Hartmann
+41 21 801 63 70
Route de la Gare 9, 1131 Tolochenaz, Switzerland


Allain Traverso - Case Engelen - French Representative for Titoma Product Development

Alain Traverso
+33 954252001
Ter Rue du President Wilson 57, 78230 Le Pecq, France

United Kingdom

Tim Pepper - UK Representative for Titoma Product Development in China

Tim Pepper
+44 7776 142228
Ash House Business Centre, TW2 5RF Twickenham, UK


Daniele Fulingo - Italian Representative for Titoma Product Development in China

Daniele Fuligno
+39 335 307 196
via Carnevali 6, PU 61100 Pesaro, Italy


Markus Olson - Swedish Representative for Titoma Product Development in China

Markus Olsson
+46 763187952
Sofierogatan 1, SE-21217 Malmö, Sweden


Soleyda Manrique - Colombian Representative for Titoma Product Development in China

Soleyda Manrique Naranjo

+57 312 774 9772

75A-33 Carrera 21, Manizales, Colombia


Howell Wang - Chinese Representative for Titoma Product Development

Howell Wang
+86 755 2876 5963
1571, 1002 Keyuan Road, 518054 Shenzhen,China