DORJI

1,700 orders since Jun 06, 2013

Shenzhen, Guangdong, China

Ships from China.

Custom Work Available

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Wireless solution platform!

Overall Rating:

Review Breakdown

Average Ratings

Product: (4.55)

Documentation: (3.57)

Shipping: (4.45)

Communication: (4.24)

All Reviews

Josh | Feb. 26, 2016

Small board with good coverage & feature set.

For Extra low power sx1212 module-DRF1212D10

This board is small and packs a lot into it. It has great coverage and good thru put. The net-id is a great feature to have when you may be in proximity of others that you want to ignore. Good post-sales customer communication.

Benjamin | Feb. 24, 2016

Good product

For 868MHz 915MHz SX1276 data radio modem DRF1276DM

Ordered 3, got them in time (France), all working perfectly well. In the first testings, using pre-set mode (max power and almost max sensitivity), got 500m range through several buildings until the signal gets blocked by the hill the receiver is on top.
Expect "high" latency when used with high sensitivity/low baudrate (1 to 2 sec at -135dB/0.5kbps).

The usb-serial module provided use a CP2104, which works perfectly with some softwares (like CoolTerm) but not at all with the c++ serial library QSerialPort and all Android apps I tested. FTDI works well in all conditions.

Marco | Feb. 11, 2016

Good but could be better

For si7005Temperature & humidity sensor module DSTH01

The sensor module works well and the measures provided by the IC are correct.
Somethings worth improving:
- you should provide a schematic of the module to know what components are on it. E.g. I had no clue if pull up resistors are present on the module and what is their value (they indeed are on the module and the value is 10k).
-most of the information provided in the datasheet are just a repetition of what already in the SI7005, so they are basically useless.

Sjoerd | Feb. 4, 2016

EU Lora module

For 868MHz Lora SX1272 Module DRF1272F

Works great.
Tested with MBED module and ported LMIC IBM lora stack to PIC18
I would recommend to use a breakout board to have the 1.27mm pins available at 2.54mm

Charles | Dec. 17, 2015

DRF1276 module Order

For 868MHz 915MHz SX1276 data radio modem DRF1276DM

Ordered in Nov, rcvd an tracking number, the tracking number never changes and have not recieved any parts

No one at Tindie seems to want to track this order!

Will not buy again from Tindie until they fix this problem, so Now I wait..

Nimit | Dec. 4, 2015

Good RFIC Module Work with my APRS

For High power ASK transmitter ASK modules--2 pairs

I used for the APRS Project for sensor node. the only one problem that I brought 4 units got one non-working unit.

Ronald | Nov. 25, 2015

Excellent product, very cheap, shipped relatively fast

For High power ASK transmitter ASK modules--2 pairs

Very good product, used for wireless connection of programmable microchips; picaxe. There was no documentation included, but that's no problem. If you order these, you know how they work, and the manufacturer's webside has all information and datasheets available.
The products were received in perfect condition and they work very well. And they were very inexpensive ! 6 dollars for two transmitters and two receivers, and hardly any costs of shipping: perfect !
Thanks.

Torben | Sept. 18, 2015

Using 3 transmitters, 2 receivers and 4 x tr/rx

For High power ASK transmitter ASK modules--2 pairs

Using them in 4 feelers (tx/rx) that communicate with a central system that controls water flow in 4 channels: 2 in front of the house and 2 in the back of the house. The second transmitter in the central system controls the system. Review Image

Josh | Aug. 29, 2015

Good boards but "high power"?

For High power ASK transmitter ASK modules--2 pairs

I'm not sure how they measured high power or long distances; but these fell just a touch shy. I felt they were still rock solid boards & performed (as intended & price point) well.
These were ok at low power modes (sleep/rest) but I found I had to power them off & back up (and slight delay) to offset the battery drain as much as possible.
these worked well; farther than the other pair of ask transmitters of similar design.

Aidan | May 22, 2015

All good.

For Arduino 433Mhz Lora SX1278 Module DRF1278F

Worked as specified. I have used them on our modular sensing system (called SnapSense).
These are 433Mhz boards and the sample code worked fine. They also worked with the radiohead library

Things to work on:
- The pitch of the pins are really for surface mount -- so quiet hard to hand solder -- especially with shaky hands.
- To make use of full range, you really need a antenna. A simple 50Ohm dipole wire will only give 1-2mile range.

Other than that, excellent and I would/will buy again.

Anton | Jan. 8, 2015

Good distance, easy to use

For Semtech LoRa SX1278 Data Radio Modem DRF1278DM

So far I did a simple test using the antennas which came with the dongles. One device was inside the apartment (2nd floor, residential area - no high rise buildings around) and the other was in the car. Got reliable reception at a distance of a slightly more than 1km.

Lawrence | Nov. 20, 2014

Easy to get going

For Semtech LoRa SX1278 Data Radio Modem DRF1278DM

These RF devices are long range supplier doesn't provide any test results but others using LoRa do.
Libelium have they are seeing 2Km in cites and 22Km line of site rural areas.
Some urban tests 1.5Km through 14 buildings that's impresive.

Steve | Oct. 17, 2014

Great little transmitter/receivers

For High power ASK transmitter ASK modules--2 pairs

Bought these for use with Picaxe processors. They work like a dream - even with a simple wire antenna I got >500m range with clear line of sight.

Horacio | Sept. 27, 2014

Excellent RF modules

For High power ASK transmitter ASK modules--2 pairs

Just completed initial trial of a pair of these modules and the results are very good. I'm using an Arduino Pro Mini with VirtualWire library and a 16.5 cm wire antenna and I'm getting solid data communication between Transmitter and receiver. Thanks for a good product.

Arie | Aug. 15, 2014

Excellent !

For Wireless RS232 transceiver module

Great product at a great price!

Steve | April 4, 2014

Dorgi - serious problems.

For SI4432 module suitable for Arduino, Picaxe

Received with no document or link to web site for specifications and connector pinout.
No information on how my software was to program the TX/RX switch - this would have been on a schematic (not available) or spec sheet for PCB, not the SiLabs chip on the board.
Tindie web site had none of the above.
I determined the four I ordered came from Dorji.
Dorji's web site's technical inquiry email links yielded bounced, non-deliverable email. I emailed to sales asking them to send to enginerring/support; no response.

I have gotten the boards to work by needless trial and error.

Not a good experience with Tindie.

Response from DORJI | April 4, 2014

Dear Steve,

It's really sorry for the inconvenience. I just checked the sales emailbox and found your email entered into the SPAM folder so we missed the chance to reply to you. I noticed that technical support email address was ineffective because we changed the domain and forgot to change it correspondingly. Our customers used to send technical questions to corresponding sales person so we didn't find the mistake. We will update it soon.

If you visited our website, you might not get to the link (http://www.dorji.com/pro/Wireless-module/Wireless_module.html) which the datasheet and sample codes are provided on the right column. It's our mistake that we didn't put related links on the page of this product on Tindie. We will fix it soon.

This module is surely based on si4432, which we have sold it for more than three years and our customers have used it in thousands of pieces. Before we sold it in Tindie, we also had sold it on Ebay and our resellers/distributors in some countries. If it were a fake chip, our outlet on EBAY would have been ceased :-). Tindie is a good platform for engineering products so I hope you don't lose confidence on the products from other suppliers and sellers and miss the chance to experience their creative works. I will send my email address to your email box soon. Please kindly send me your paypal account. We will refund the amount to you.

Milan | Jan. 30, 2014

Su spokojeny

For High power ASK transmitter ASK modules--2 pairs

Anglicky neumim, toz to napisu cesky: su fakt spokojeny.

Florin | Jan. 30, 2014

DRA886RX + DRA887TX

For High power ASK transmitter ASK modules--2 pairs

I received 2pcs. DRA886RX receivers and 2pcs. DRA887TX transmitters. They are as advertised, genuine Dorji products. I tested the modules indoor for the moment, I can't tell if they are like in the specification but from what I've observed until now (indoor test with no antennas at all) the the RX sensitivity is very good.
Excellent transaction and fast shipping!

Pravin | Jan. 16, 2014

Nice Module

For Wireless walkie talke module DRA808M

Thank you for a wonderful product, i have tested it for a High Altitude ballon project for a parrot repeater. Land tests are going well

Mike | Dec. 12, 2013

Cannot recommend this module

For Low Energy Bluetooth 4.0 CC2540 Module

I've been trying to talk to this module for sometime without any luck. The link to the datasheet is fine but the link to the commands to talk to it is dead. Digging for any other information or examples also came up with nothing.

Response from DORJI | Dec. 12, 2013

Hello Mike,

The version of module is a peripheral module and it doesn't support AT commands and it communicate with the Iphone or Anroid system with fixed baudrate. Could you be kind to send your more details on your testing to my email address: nocorn1[at]gmail.com? If the module really can't work because of design or production problem, we can refund you or send you the new version of module.

For next version of module, the module can be worked as master or slave module so communicaton between two modules become true and we added a lot of AT commands to provide more flexible control on the module.

Best regards,
DORJI TEAM

Martin | Nov. 11, 2013

Ham radio Amateur radio wireless audio module walkie talke m

For Wireless walkie talke module DRA808M

Arrived nicely ... looking forward to hooking it up.
Wish the MCU was re-programmable though ...

Brody | July 12, 2013

They work!

For 433Mhz CC1101 RF wireless module

Tested with a wire antenna on a 3.3V Arduino Pro Mini using the Panstamp CC1101 send receive code.

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