Hello, I have a set of xrcu. Recently , I downloaded a program but accidental off the robot. This resulted in the firmware crash. I've downloaded the firmware from this website but I have no idea of how to flash the firmware. Are you able to help me out ? Thanks in advance.


Dear JiaMing, X1RCU has firmware upgrade function, XRCU doesn't have. What happened to your XRCU? Can it download program? Send photos and details of the problem to for further problem shooting. THX.
I have a joinmax dog. The documentations didn't have any info. on jumper 2 to jumper 7. Either jumper 3 or jumper 6 is connected right now on the pc board. Please provide me with j2-j7 infos. Are there any dog walking sequences anywhere? I want to make my dog walk but you should provide some programming samples. I could not find on the cd-rom or on your webside.


Dear Boss, Could you take some photos of the PCB, and sent to Describe your need. And pls send Invoice of the purchase. Thx. Sample program for robot dog
Hi, can I have the list of i2c commands and addresses for the compound eye (JMP-BE-1725) and the solenoid kicker driver? thanks


Dear Joe, Happy New Year! JMP-BE-1725 compound eye's I2C hardware address is 0x01. Follow the standard I2C protocol and the information can be read in way of MASTER READ. What is "the solenoid kicker driver"?
Hi, I would like the support tell me how to buy the products(Single products not Whole buy) from the site also how to ship it to saudi arabia, Jeddah. thank you


Dear Waleed, Thanks for your enquiry. Email sent to you, pls check. Pls feel free to contact us if there is further questions.
Hi I have and SuperRCU and a X1RCU I also have a spare lego NXT light sensor How can I make my Super RCU read it? How do I send out I2C commands in RoboEXP? Thanks Please reply ASAP


Dear Johnny, Thanks for your support to JoinMax! It's not recommended to use goods of different brands together, for they might not be compatible in design. If you insist on combining them, please contact your sellers of the two brands for local help. In RoboExpress, every module has its own icon, you can just send orders via the icon. Refer to Example Program and the course attached in software, should not be hard to understand.
Monica Prieto    
Hola me interesa comprar algunos de sus productos como puedo pedirlos con ustedes yo me ubico en M茅xico D.F. Los productos queme interesan son: Omniwheel Pack Model:JMP-BP-1264 High-power Motor 3526 Model:JMP-BE-3526 Gracias


Dear Monica, Thanks for enquiry! Reply has been made to your mailbox. Pls check, and tell what else we can do for you.
Hi, I have got one problem. When I download the program to X-RCU it writes "Invalid RCU type". There is set to XRCU in options. Can you help me?


Dear John, After setting the RCU type, pls close the software, and then run it again. In this way the setting takes effect. Could you try?
I have an X1RCU, and I am interested in integrating an actuator that uses air, similar to a piston. Can I know any way of doing this or getting this? I also want to know if I can program the X1RCU to send out digital signals,PWM, or program in I2C, since I can get a small electric solenoid to control the piston. Thanks Plzz reply ASAP


Dear John, There is a brand new air-actuated robot, not ready for selling yet. X1RCU can send those signals. Please email to should there be any further questions. TKS.
if i want to buy photoelectric sensor. Model:JMP-BE-1410 Can you please provide the details of this product and the manual?


Dear Yunn,    Could you tell what controller and software you're using? If you're using JoinMax program software RoboExp, there is example program, and basic operations teaching how to use.       If you get further questions, you can get into contact with our engineers via Thanks.   
I am from India and i want to buy your BE-1120 Light proof Gray Scale Sensor.. Pls give me details regarding the same asap... Thank you...


Dear Chitrash, Thanks for the enquiry. The product data is displayed on What other data do you need?   Email has been sent to your mailbox. Pls check and reply, then we can keep in contact regarding this issue.  
Leave words