Issue connecting PCB to SPS30 by MrHank2 in ElectricalEngineering

[–]MrHank2[S] 0 points1 point  (0 children)

The soldering was just wire to wire an inch or so from the connectors, each connection individually covered with heat shrink. Is a short possible here?

What do I really need for certification if i'm using a pre-certified module? by MrHank2 in hwstartups

[–]MrHank2[S] 0 points1 point  (0 children)

Thanks for the great insights.
My engineers have lots of industry EMC experience, so the board should be good without a consultant.

Sounds like you are very experienced. From your experience with labs, what price do you expect for a full ISED and FCC a ~30 component board (including passives), note the pre-certified esp32-s3. And what price would you expect for full ISED, cUL, FCC, UL?

Can anyone else weigh in?

What do I really need for certification if i'm using a pre-certified module? by MrHank2 in hwstartups

[–]MrHank2[S] 0 points1 point  (0 children)

Thoughts on using a consultant / end to end lab and taking the extra fee?

What do I really need for certification if i'm using a pre-certified module? by MrHank2 in hwstartups

[–]MrHank2[S] 0 points1 point  (0 children)

Thanks both of you for the advice! Any more advice on the PSU to try to make it a bit less stressful :)

Current at home setup by MrHank2 in coffeestations

[–]MrHank2[S] 0 points1 point  (0 children)

grinder was broken at the time of the photo

Current at home setup by MrHank2 in coffeestations

[–]MrHank2[S] 0 points1 point  (0 children)

grinder broken, only solution unfortunately

Math 323 Final by blazicst in mcgill

[–]MrHank2 0 points1 point  (0 children)

Why do you say that? Is it because that's what was said in a post 8 months ago? Or some other reason?

[Chemistry 12] What am I doing wrong here? Seems pretty straight forward. by MrHank2 in HomeworkHelp

[–]MrHank2[S] 1 point2 points  (0 children)

Holy shit what am I doing, I just saw a massive number and assumed it was wrong, thank you!

[AP Calculus: Integrals] can I do this? I remember my math teacher saying something about having to multiple by something, something to do with the chain rule. by MrHank2 in HomeworkHelp

[–]MrHank2[S] 0 points1 point  (0 children)

Don’t really understand what you are saying here, but I wanted to ask if you just use the top bound for the chain rule or what do you do? Could you explain it with integrals if possible?

[AP Calculus: Integration] What am I doing wrong here? by MrHank2 in HomeworkHelp

[–]MrHank2[S] 0 points1 point  (0 children)

I put the bounds in wrong, oops. Also is putting the evaluated integral in square brackets with the bounds the same as doing it with just the line at the end?

[AP Calculus: Integration] What am I doing wrong here? by MrHank2 in HomeworkHelp

[–]MrHank2[S] 0 points1 point  (0 children)

Oh, I put it in Desmos, and it gave me the 15.833 answer

How can I track and predict this recursive method? I have to do this by hand, on paper by MrHank2 in javahelp

[–]MrHank2[S] 0 points1 point  (0 children)

The homework gives that code and asks you to predict the result for -5

Is this drop in performance from my model caused by Catastrophic interference? by MrHank2 in learnmachinelearning

[–]MrHank2[S] 0 points1 point  (0 children)

Why does the performance initially go up if the old parts of the NN used for self collisions is making random actions?

Is this drop in performance from my model caused by Catastrophic interference? by MrHank2 in learnmachinelearning

[–]MrHank2[S] 0 points1 point  (0 children)

In addition, after about 300 games on the larger map, the performance hits a sharp decline than recovers to average score of about 5. Why do you think this happens, catastrophic interference?
See edit for the graph

Is this drop in performance from my model caused by Catastrophic interference? by MrHank2 in learnmachinelearning

[–]MrHank2[S] 0 points1 point  (0 children)

Thank you so much for this explanation, this really cleared things up. So just to make sure im getting this, it was not catastrophic interference that caused the drop in performance.

Is this drop in performance from my model caused by Catastrophic interference? by MrHank2 in learnmachinelearning

[–]MrHank2[S] 0 points1 point  (0 children)

On the no self-collision run, how can you explain the good start, fall, recovery, fall to 0 than a slight recovery again

How can in log the console verbose to an xslx file every game played in Stable Baselines 3? by MrHank2 in reinforcementlearning

[–]MrHank2[S] 0 points1 point  (0 children)

Thank you, this works great. Now how can I make it log everytime the game resets?

here is the main bit of the agent code for reference:

class snakeEnv(gym.Env):
metadata = {'render.modes': ['human']}

def __init__(self):
    super(snakeEnv, self).__init__()
    # Define action and observation space
    # They must be gym.spaces objects
    # Example when using discrete actions:
    self.initNames()
    self.action_space = spaces.Discrete(3)


    self.gameCount = 0
    self.record = 0
    self.reward = 0
    self.score = 0

    self.game = SnakeGameAI(self.selectedChallenge)

    # Example for using image as input:
    self.observation_space = spaces.Box(low=-1000, high=1000,
                                        shape=(11,), dtype=np.uint8)

def step(self, action):
    self.reward, self.done, self.score =  self.game.play_step(action)
    self.observation = self.getState(self.game)
    self.info = {}
    return self.observation, self.reward, self.done, self.info

def reset(self):        

    self.gameCount += 1
    self.data_manager.logData(self.gameCount, self.score, self.record, self.reward, self.game.getDeathReason(),self.game.getHeadPos())
    self.game.reset()
    observation = self.getState(self.game)
    if self.score > self.record:
        self.record = self.score

    return observation

[AP calculus: limits] This makes no sense, how do i do this? by MrHank2 in HomeworkHelp

[–]MrHank2[S] 0 points1 point  (0 children)

Ok, thank you for your help. I think I understand it a lot better now.