I have a contract successfully deployed and working well in the Javascript VM on Remix.

contract BlipCoinIco is PausableToken {

  function() isIcoOpen payable {
      totalRaised = totalRaised.add(msg.value);

      uint256 tokenAmount = calculateTokenAmount(msg.value);
      balances[fundsWallet] = balances[fundsWallet].sub(tokenAmount);
      balances[msg.sender] = balances[msg.sender].add(tokenAmount);
      Transfer(fundsWallet, msg.sender, tokenAmount);

      // immediately transfer ether to fundsWallet

  function calculateTokenAmount(uint256 weiAmount) constant returns(uint256) {
      // standard rate: 1 ETH : 50 ESP
      uint256 tokenAmount = weiAmount.mul(50);
      if (now <= startTimestamp + 7 days) {
          // +50% bonus during first week
          return tokenAmount.mul(150).div(100);
      } else {
          return tokenAmount;


The Javascript VM provides a couple of test accounts with preloaded Ether:

enter image description here

The contract owner and fund's wallet belongs to the first test account.

How can I send ether to the first test account, from the second test account, so that it hits the contract's isIcoOpen payable function?

I've tried using the send and transfer functions, but I can't get it to work.

2 Answers 2


You don’t have to send ether to the other account to trigger the function. The function you mention is a fallback function of the contract. To trigger it you have to send ether to the contract, not the accounts you list.

  • Right, I think I was just mixing up my terms, I understand. I have the contract address, how do I send ether from one of the test accounts to the contract so that it gives that account tokens? I have this contract working on the test net with MetaMask by the way, I just don't know how to transfer ether with these VM accounts.
    – Alex E
    Commented Dec 10, 2017 at 20:15
  • 1
    You could execute the fallback function (in red in Remix when you compile the contract) and supply ether to it by setting the value. Commented Dec 10, 2017 at 20:26
  • Yep, just figured this out myself. Thanks! Setting the 'Value' in the 'Run' tab where the accounts are listed, then hitting the 'fallback' function sends ether to the contract.
    – Alex E
    Commented Dec 10, 2017 at 20:27

Setting and using a transfer function from your contract and then passing a value is one way. You can also send ether (if you've deployed your contract) by setting a value and using the low-level call.

Set Value


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