Frame before cutting
It’s a 3mm Perspex sheet. I was a bit suprised how flexible it is, I was expecting more rigidity. But it’s okay, I will (try […]
Make
Dual motor now working
Still Spider ESC for the left motor, Blue Robotics basic ESC for the right motor. For some reason, I was unable to make PWM work […]
1st shot at a remote console for the prototype boat
Built with wxPython. Communicate through the serial port of the PC with a Teensy making the gateway with the RFM69 radio module (and from here […]
ACS 713 / 723 current sensor experiment
In spite of some efforts, it’s still difficult to get a stable current measurement. As a reminder, on the prototype, the power is 25W with […]
New prototype motor voltage strategy
As a reminder, the point is that the solar panel gives ~ 22V, while the motors are rated 14.4V. I thought a lot about it, […]
RFM69 radio module working (driver needs some polishing) + (1) ESC control ok
Bad luck, I started with a dead ESC (which I was convinced was working), and, since it was my first shot at PWM with ChibiOs, […]
Building a prototype first
I’m restarting the project and building a scaled-down prototype first to solve all the software problem on a cheaper model. I’ve settled on STM32F4(46) for […]
resulting PCB
I added a TMP 36 probe in the process to have the on-board (capsule) temperature, as opposed to the BMP 180 giving the OAT (Outside […]
back to Afro ESC (for 22V operations) + feedback frequency
The basic Afro ESC doesn’t support enough voltage for my needs (the solar panel can deliver as much as 22V). I tried the Spider ESC, […]
They did it !
Seacharger crossed the Pacific Ocean from California to Hawai. Clic here to read everything about this great achievement.